GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2023-53641 (GCVE-0-2023-53641)

Vulnerability from cvelistv5 – Published: 2025-10-07 15:19 – Updated: 2026-05-11 19:49
VLAI
Title
wifi: ath9k: hif_usb: fix memory leak of remain_skbs
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k: hif_usb: fix memory leak of remain_skbs hif_dev->remain_skb is allocated and used exclusively in ath9k_hif_usb_rx_stream(). It is implied that an allocated remain_skb is processed and subsequently freed (in error paths) only during the next call of ath9k_hif_usb_rx_stream(). So, if the urbs are deallocated between those two calls due to the device deinitialization or suspend, it is possible that ath9k_hif_usb_rx_stream() is not called next time and the allocated remain_skb is leaked. Our local Syzkaller instance was able to trigger that. remain_skb makes sense when receiving two consecutive urbs which are logically linked together, i.e. a specific data field from the first skb indicates a cached skb to be allocated, memcpy'd with some data and subsequently processed in the next call to ath9k_hif_usb_rx_stream(). Urbs deallocation supposedly makes that link irrelevant so we need to free the cached skb in those cases. Fix the leak by introducing a function to explicitly free remain_skb (if it is not NULL) when the rx urbs have been deallocated. remain_skb is NULL when it has not been allocated at all (hif_dev struct is kzalloced) or when it has been processed in next call to ath9k_hif_usb_rx_stream(). Found by Linux Verification Center (linuxtesting.org) with Syzkaller.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: fb9987d0f748c983bb795a86f47522313f701a08 , < 6719e3797ec52cd144c8a5ba8aaab36674800585 (git)
Affected: fb9987d0f748c983bb795a86f47522313f701a08 , < d9899318660791141ea6002fda5577b2c5d7386e (git)
Affected: fb9987d0f748c983bb795a86f47522313f701a08 , < 320d760a35273aa815d58b57e4fd9ba5279a3489 (git)
Affected: fb9987d0f748c983bb795a86f47522313f701a08 , < 59073060fe0950c6ecbe12bdc06469dcac62128d (git)
Affected: fb9987d0f748c983bb795a86f47522313f701a08 , < 9b9356a3014123f0ce4b50d9278c1265173150ab (git)
Affected: fb9987d0f748c983bb795a86f47522313f701a08 , < f0931fc8f4b6847c72e170d2326861c0a081d680 (git)
Affected: fb9987d0f748c983bb795a86f47522313f701a08 , < 8f02d538878c9b1501f624595eb22ee4e5e0ff84 (git)
Affected: fb9987d0f748c983bb795a86f47522313f701a08 , < 7654cc03eb699297130b693ec34e25f77b17c947 (git)
guessed Create a notification for this product.
Linux Linux Affected: 2.6.35
Unaffected: 0 , < 2.6.35 (semver)
Unaffected: 4.19.283 , ≤ 4.19.* (semver)
Unaffected: 5.4.243 , ≤ 5.4.* (semver)
Unaffected: 5.10.180 , ≤ 5.10.* (semver)
Unaffected: 5.15.111 , ≤ 5.15.* (semver)
Unaffected: 6.1.28 , ≤ 6.1.* (semver)
Unaffected: 6.2.15 , ≤ 6.2.* (semver)
Unaffected: 6.3.2 , ≤ 6.3.* (semver)
Unaffected: 6.4 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/ath/ath9k/hif_usb.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "6719e3797ec52cd144c8a5ba8aaab36674800585",
              "status": "affected",
              "version": "fb9987d0f748c983bb795a86f47522313f701a08",
              "versionType": "git"
            },
            {
              "lessThan": "d9899318660791141ea6002fda5577b2c5d7386e",
              "status": "affected",
              "version": "fb9987d0f748c983bb795a86f47522313f701a08",
              "versionType": "git"
            },
            {
              "lessThan": "320d760a35273aa815d58b57e4fd9ba5279a3489",
              "status": "affected",
              "version": "fb9987d0f748c983bb795a86f47522313f701a08",
              "versionType": "git"
            },
            {
              "lessThan": "59073060fe0950c6ecbe12bdc06469dcac62128d",
              "status": "affected",
              "version": "fb9987d0f748c983bb795a86f47522313f701a08",
              "versionType": "git"
            },
            {
              "lessThan": "9b9356a3014123f0ce4b50d9278c1265173150ab",
              "status": "affected",
              "version": "fb9987d0f748c983bb795a86f47522313f701a08",
              "versionType": "git"
            },
            {
              "lessThan": "f0931fc8f4b6847c72e170d2326861c0a081d680",
              "status": "affected",
              "version": "fb9987d0f748c983bb795a86f47522313f701a08",
              "versionType": "git"
            },
            {
              "lessThan": "8f02d538878c9b1501f624595eb22ee4e5e0ff84",
              "status": "affected",
              "version": "fb9987d0f748c983bb795a86f47522313f701a08",
              "versionType": "git"
            },
            {
              "lessThan": "7654cc03eb699297130b693ec34e25f77b17c947",
              "status": "affected",
              "version": "fb9987d0f748c983bb795a86f47522313f701a08",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/ath/ath9k/hif_usb.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.35"
            },
            {
              "lessThan": "2.6.35",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.283",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.243",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.180",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.111",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.28",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.2.*",
              "status": "unaffected",
              "version": "6.2.15",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.3.*",
              "status": "unaffected",
              "version": "6.3.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.4",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.283",
                  "versionStartIncluding": "2.6.35",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.243",
                  "versionStartIncluding": "2.6.35",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.180",
                  "versionStartIncluding": "2.6.35",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.111",
                  "versionStartIncluding": "2.6.35",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.28",
                  "versionStartIncluding": "2.6.35",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.2.15",
                  "versionStartIncluding": "2.6.35",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.3.2",
                  "versionStartIncluding": "2.6.35",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.4",
                  "versionStartIncluding": "2.6.35",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath9k: hif_usb: fix memory leak of remain_skbs\n\nhif_dev-\u003eremain_skb is allocated and used exclusively in\nath9k_hif_usb_rx_stream(). It is implied that an allocated remain_skb is\nprocessed and subsequently freed (in error paths) only during the next\ncall of ath9k_hif_usb_rx_stream().\n\nSo, if the urbs are deallocated between those two calls due to the device\ndeinitialization or suspend, it is possible that ath9k_hif_usb_rx_stream()\nis not called next time and the allocated remain_skb is leaked. Our local\nSyzkaller instance was able to trigger that.\n\nremain_skb makes sense when receiving two consecutive urbs which are\nlogically linked together, i.e. a specific data field from the first skb\nindicates a cached skb to be allocated, memcpy\u0027d with some data and\nsubsequently processed in the next call to ath9k_hif_usb_rx_stream(). Urbs\ndeallocation supposedly makes that link irrelevant so we need to free the\ncached skb in those cases.\n\nFix the leak by introducing a function to explicitly free remain_skb (if\nit is not NULL) when the rx urbs have been deallocated. remain_skb is NULL\nwhen it has not been allocated at all (hif_dev struct is kzalloced) or\nwhen it has been processed in next call to ath9k_hif_usb_rx_stream().\n\nFound by Linux Verification Center (linuxtesting.org) with Syzkaller."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T19:49:05.188Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/6719e3797ec52cd144c8a5ba8aaab36674800585"
        },
        {
          "url": "https://git.kernel.org/stable/c/d9899318660791141ea6002fda5577b2c5d7386e"
        },
        {
          "url": "https://git.kernel.org/stable/c/320d760a35273aa815d58b57e4fd9ba5279a3489"
        },
        {
          "url": "https://git.kernel.org/stable/c/59073060fe0950c6ecbe12bdc06469dcac62128d"
        },
        {
          "url": "https://git.kernel.org/stable/c/9b9356a3014123f0ce4b50d9278c1265173150ab"
        },
        {
          "url": "https://git.kernel.org/stable/c/f0931fc8f4b6847c72e170d2326861c0a081d680"
        },
        {
          "url": "https://git.kernel.org/stable/c/8f02d538878c9b1501f624595eb22ee4e5e0ff84"
        },
        {
          "url": "https://git.kernel.org/stable/c/7654cc03eb699297130b693ec34e25f77b17c947"
        }
      ],
      "title": "wifi: ath9k: hif_usb: fix memory leak of remain_skbs",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53641",
    "datePublished": "2025-10-07T15:19:41.028Z",
    "dateReserved": "2025-10-07T15:16:59.658Z",
    "dateUpdated": "2026-05-11T19:49:05.188Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2023-53641",
      "date": "2026-09-18",
      "epss": "0.00156",
      "percentile": "0.05175"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "drivers/net/wireless/ath/ath9k/hif_usb.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "6719e3797ec52cd144c8a5ba8aaab36674800585",
                    "status": "affected",
                    "version": "fb9987d0f748c983bb795a86f47522313f701a08",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "d9899318660791141ea6002fda5577b2c5d7386e",
                    "status": "affected",
                    "version": "fb9987d0f748c983bb795a86f47522313f701a08",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "320d760a35273aa815d58b57e4fd9ba5279a3489",
                    "status": "affected",
                    "version": "fb9987d0f748c983bb795a86f47522313f701a08",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "59073060fe0950c6ecbe12bdc06469dcac62128d",
                    "status": "affected",
                    "version": "fb9987d0f748c983bb795a86f47522313f701a08",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "9b9356a3014123f0ce4b50d9278c1265173150ab",
                    "status": "affected",
                    "version": "fb9987d0f748c983bb795a86f47522313f701a08",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "f0931fc8f4b6847c72e170d2326861c0a081d680",
                    "status": "affected",
                    "version": "fb9987d0f748c983bb795a86f47522313f701a08",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "8f02d538878c9b1501f624595eb22ee4e5e0ff84",
                    "status": "affected",
                    "version": "fb9987d0f748c983bb795a86f47522313f701a08",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "7654cc03eb699297130b693ec34e25f77b17c947",
                    "status": "affected",
                    "version": "fb9987d0f748c983bb795a86f47522313f701a08",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "drivers/net/wireless/ath/ath9k/hif_usb.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "2.6.35"
                  },
                  {
                    "lessThan": "2.6.35",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "4.19.*",
                    "status": "unaffected",
                    "version": "4.19.283",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.4.*",
                    "status": "unaffected",
                    "version": "5.4.243",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.10.*",
                    "status": "unaffected",
                    "version": "5.10.180",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.15.*",
                    "status": "unaffected",
                    "version": "5.15.111",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.1.*",
                    "status": "unaffected",
                    "version": "6.1.28",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.2.*",
                    "status": "unaffected",
                    "version": "6.2.15",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.3.*",
                    "status": "unaffected",
                    "version": "6.3.2",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "6.4",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "0B3AD6DB-0A40-4AE7-B7CA-2BC3A8E94AD4",
                    "versionEndExcluding": "4.19.283",
                    "versionStartIncluding": "2.6.35",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "E54ACEF5-C8C1-4266-85FC-7D513FFD1DEC",
                    "versionEndExcluding": "5.4.243",
                    "versionStartIncluding": "4.20",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "78422AC3-CC89-479E-B4BC-62381D8F3564",
                    "versionEndExcluding": "5.10.180",
                    "versionStartIncluding": "5.5",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "2B9DD776-7F17-4F72-B94F-54BFCBC692DD",
                    "versionEndExcluding": "5.15.111",
                    "versionStartIncluding": "5.11",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "08F855F4-7188-4EE1-BD79-D4B6C7E2EF54",
                    "versionEndExcluding": "6.1.28",
                    "versionStartIncluding": "5.16",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "3844A90B-940D-46C3-8D7B-9FF63F1AFC2F",
                    "versionEndExcluding": "6.2.15",
                    "versionStartIncluding": "6.2",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "38F6F330-91A0-4675-8B90-6F950471A7CC",
                    "versionEndExcluding": "6.3.2",
                    "versionStartIncluding": "6.3",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath9k: hif_usb: fix memory leak of remain_skbs\n\nhif_dev-\u003eremain_skb is allocated and used exclusively in\nath9k_hif_usb_rx_stream(). It is implied that an allocated remain_skb is\nprocessed and subsequently freed (in error paths) only during the next\ncall of ath9k_hif_usb_rx_stream().\n\nSo, if the urbs are deallocated between those two calls due to the device\ndeinitialization or suspend, it is possible that ath9k_hif_usb_rx_stream()\nis not called next time and the allocated remain_skb is leaked. Our local\nSyzkaller instance was able to trigger that.\n\nremain_skb makes sense when receiving two consecutive urbs which are\nlogically linked together, i.e. a specific data field from the first skb\nindicates a cached skb to be allocated, memcpy\u0027d with some data and\nsubsequently processed in the next call to ath9k_hif_usb_rx_stream(). Urbs\ndeallocation supposedly makes that link irrelevant so we need to free the\ncached skb in those cases.\n\nFix the leak by introducing a function to explicitly free remain_skb (if\nit is not NULL) when the rx urbs have been deallocated. remain_skb is NULL\nwhen it has not been allocated at all (hif_dev struct is kzalloced) or\nwhen it has been processed in next call to ath9k_hif_usb_rx_stream().\n\nFound by Linux Verification Center (linuxtesting.org) with Syzkaller."
          }
        ],
        "id": "CVE-2023-53641",
        "lastModified": "2026-06-17T06:45:46.677",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 5.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2025-10-07T16:15:47.390",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/320d760a35273aa815d58b57e4fd9ba5279a3489"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/59073060fe0950c6ecbe12bdc06469dcac62128d"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/6719e3797ec52cd144c8a5ba8aaab36674800585"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/7654cc03eb699297130b693ec34e25f77b17c947"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/8f02d538878c9b1501f624595eb22ee4e5e0ff84"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/9b9356a3014123f0ce4b50d9278c1265173150ab"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/d9899318660791141ea6002fda5577b2c5d7386e"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/f0931fc8f4b6847c72e170d2326861c0a081d680"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-401"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-07-21T18:54:40+00:00",
      "cve": "CVE-2023-53641",
      "id": "CVE-2023-53641",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:fixed": "120",
      "product_status:known_affected": "166",
      "product_status:known_not_affected": "76",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: wifi: ath9k: hif_usb: fix memory leak of remain_skbs",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-53641.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-31T00:56:53Z",
      "cve": "CVE-2023-53641",
      "id": "CVE-2023-53641",
      "initial_release_date": "2025-10-07T23:47:15Z",
      "product_status:known_affected": "556",
      "product_status:known_not_affected": "165",
      "product_status:recommended": "268",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-53641",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-53641.json",
      "version": "31"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.