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Common Weakness Enumeration

CWE-125

Allowed

Out-of-bounds Read

Abstraction: Base · Status: Draft

The product reads data past the end, or before the beginning, of the intended buffer.

12317 vulnerabilities reference this CWE, most recent first.

CVE-2026-20424 (GCVE-0-2026-20424)

Vulnerability from cvelistv5 – Published: 2026-03-02 08:39 – Updated: 2026-03-30 13:06
VLAI
Summary
In display, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10320471; Issue ID: MSV-5540.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-02 13:57 UTC
CWE
Impacted products
Vendor Product Version
MediaTek, Inc. MediaTek chipset Affected: MT6991
Affected: MT6993
Affected: MT8196
Affected: MT8678
Affected: MT8793
Create a notification for this product.
Show details on NVD website

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CVE-2026-20421 (GCVE-0-2026-20421)

Vulnerability from cvelistv5 – Published: 2026-02-02 08:14 – Updated: 2026-03-30 13:02
VLAI
Summary
In Modem, there is a possible system crash due to improper input validation. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01738293; Issue ID: MSV-5922.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-17 14:16 UTC
CWE
Impacted products
Vendor Product Version
MediaTek, Inc. MediaTek chipset Affected: MT2735
Affected: MT6833
Affected: MT6853
Affected: MT6855
Affected: MT6873
Affected: MT6875
Affected: MT6877
Affected: MT6880
Affected: MT6883
Affected: MT6885
Affected: MT6889
Affected: MT6890
Affected: MT6891
Affected: MT6893
Affected: MT8791
Create a notification for this product.
Show details on NVD website

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CVE-2026-20420 (GCVE-0-2026-20420)

Vulnerability from cvelistv5 – Published: 2026-02-02 08:14 – Updated: 2026-03-30 13:02
VLAI
Summary
In Modem, there is a possible system crash due to incorrect error handling. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01738313; Issue ID: MSV-5935.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-02 18:47 UTC
CWE
Impacted products
Vendor Product Version
MediaTek, Inc. MediaTek chipset Affected: MT2735
Affected: MT2737
Affected: MT6813
Affected: MT6815
Affected: MT6833
Affected: MT6835
Affected: MT6853
Affected: MT6855
Affected: MT6858
Affected: MT6873
Affected: MT6875
Affected: MT6877
Affected: MT6878
Affected: MT6879
Affected: MT6880
Affected: MT6883
Affected: MT6885
Affected: MT6886
Affected: MT6889
Affected: MT6890
Affected: MT6891
Affected: MT6893
Affected: MT6895
Affected: MT6896
Affected: MT6897
Affected: MT6899
Affected: MT6980
Affected: MT6983
Affected: MT6985
Affected: MT6986
Affected: MT6989
Affected: MT6990
Affected: MT6991
Affected: MT6993
Affected: MT8676
Affected: MT8791
Create a notification for this product.
Show details on NVD website

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CVE-2026-20347 (GCVE-0-2026-20347)

Vulnerability from cvelistv5 – Published: 2026-08-07 16:42 – Updated: 2026-08-07 21:10
VLAI
Title
ClamAV Mach-O File Format Processing Memory Corruption Vulnerability
Summary
A vulnerability in the Mach-O file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition or possibly other expanded impacts as a result of memory corruption on an affected device. This vulnerability is due to improper boundary checks for content in Mach-O files during scanning, which may result in an out-of-bounds buffer read. An attacker could exploit this vulnerability by submitting a crafted Mach-O file to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to cause the ClamAV scanning process to terminate, resulting in a DoS condition on the affected software.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-07 21:00 UTC
CWE
Impacted products
Vendor Product Version
Cisco Cisco Secure Endpoint Affected: 7.0.5
Affected: 6.2.19
Affected: 7.3.3
Affected: 7.2.13
Affected: 6.1.5
Affected: 6.3.1
Affected: 6.2.5
Affected: 7.3.5
Affected: 6.2.1
Affected: 7.2.7
Affected: 7.1.1
Affected: 6.3.5
Affected: 6.2.9
Affected: 7.3.1
Affected: 6.1.7
Affected: 7.2.11
Affected: 7.2.3
Affected: 7.1.5
Affected: 6.3.3
Affected: 7.3.9
Affected: 6.2.3
Affected: 6.1.9
Affected: 6.0.9
Affected: 7.2.5
Affected: 6.0.7
Affected: 6.3.7
Affected: 1.12.3
Affected: 1.8.0
Affected: 1.11.1
Affected: 1.12.4
Affected: 1.10.0
Affected: 1.12.0
Affected: 1.8.1
Affected: 1.10.1
Affected: 1.12.1
Affected: 1.12.6
Affected: 1.14.0
Affected: 1.10.2
Affected: 1.12.7
Affected: 1.12.2
Affected: 1.6.0
Affected: 1.9.0
Affected: 1.11.0
Affected: 1.7.0
Affected: 1.13.0
Affected: 1.8.4
Affected: 1.13.1
Affected: 1.9.1
Affected: 1.12.5
Affected: 1.13.2
Affected: 2.0.2
Affected: 1.1.0
Affected: 2.0.0
Affected: 2.0.1
Affected: 8.1.7.21512
Affected: 8.1.7
Affected: 8.1.5
Affected: 8.1.3.21242
Affected: 8.1.3
Affected: 8.1.5.21322
Affected: 8.1.7.21417
Affected: 2.1.0.14
Affected: 2.2.0
Affected: 2.3.0
Affected: 2.4.0
Affected: 2.5.0
Affected: 2.6.0
Affected: 2.7.0
Affected: 2.8.0
Affected: 2.9.0
Affected: 2.10.0
Affected: 2.10.1
Affected: 2.11.0
Affected: 1.14.1
Affected: 1.15.1
Affected: 1.15.2
Affected: 1.15.3
Affected: 1.15.4
Affected: 1.15.5
Affected: 1.15.6
Affected: 1.16.0
Affected: 1.16.1
Affected: 1.16.2
Affected: 1.16.3
Affected: 1.18.0
Affected: 1.18.1
Affected: 1.20.0
Affected: 1.21.0
Affected: 1.21.1
Affected: 1.21.2
Affected: 1.21.3
Affected: 1.22.0
Affected: 1.22.1
Affected: 1.22.2
Affected: 1.22.3
Affected: 1.22.4
Affected: 1.24.0
Affected: 1.24.1
Affected: 1.24.2
Affected: 1.24.3
Affected: 1.24.4
Affected: 1.26.0
Affected: 1.24.5
Affected: 1.26.1
Affected: 1.27.0
Affected: 1.15.0
Affected: 1.17.0
Affected: 1.17.1
Affected: 1.17.2
Affected: 1.19.0
Affected: 1.20.1
Affected: 1.20.2
Affected: 1.20.3
Affected: 1.20.4
Affected: 1.20.5
Affected: 1.20.6
Affected: 1.23.0
Affected: 1.23.1
Affected: 1.20.7
Affected: 1.20.8
Affected: 1.25.0
Affected: 1.25.1
Affected: 1.25.2
Affected: 1.27.1
Affected: 1.27.2
Affected: 7.3.13
Affected: 7.3.15
Affected: 7.4.1
Affected: 7.4.1.20425
Affected: 7.4.1.20439
Affected: 7.4.3
Affected: 7.4.3.20679
Affected: 7.4.5
Affected: 7.5.1.20813
Affected: 7.5.1.20833
Affected: 7.5.3
Affected: 7.5.5
Affected: 8.0.1.21160
Affected: 8.0.1.21164
Affected: 7.5.7
Affected: 7.5.9
Affected: 7.5.11
Affected: 8.1.7.21585
Affected: 7.5.13.21586
Affected: 7.5.13.21598
Affected: 8.2.1.21612
Affected: 8.2.1.21650
Affected: 7.5.15.21611
Affected: 7.5.17.21680
Affected: 8.2.3.30119
Affected: 8.2.4.30130
Affected: 8.4.0
Affected: 7.5.19
Affected: 8.4.1.30298
Affected: 8.4.2.30317
Affected: 8.4.1.30307
Affected: 7.5.20
Affected: 8.4.3
Affected: 8.4.4.30419
Affected: 8.4.4.30467
Affected: 7.5.21.21732
Affected: 8.4.5.30483
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Show details on NVD website

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              "status": "affected",
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              "status": "affected",
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              "status": "affected",
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              "status": "affected",
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            {
              "status": "affected",
              "version": "7.5.7"
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              "status": "affected",
              "version": "7.5.9"
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            {
              "status": "affected",
              "version": "7.5.11"
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            {
              "status": "affected",
              "version": "8.1.7.21585"
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            {
              "status": "affected",
              "version": "7.5.13.21586"
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            {
              "status": "affected",
              "version": "7.5.13.21598"
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              "status": "affected",
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              "status": "affected",
              "version": "7.5.15.21611"
            },
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              "status": "affected",
              "version": "7.5.17.21680"
            },
            {
              "status": "affected",
              "version": "8.2.3.30119"
            },
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              "status": "affected",
              "version": "8.2.4.30130"
            },
            {
              "status": "affected",
              "version": "8.4.0"
            },
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              "status": "affected",
              "version": "7.5.19"
            },
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              "status": "affected",
              "version": "8.4.1.30298"
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              "status": "affected",
              "version": "8.4.2.30317"
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              "status": "affected",
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              "status": "affected",
              "version": "7.5.20"
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              "status": "affected",
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        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability in the Mach-O file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition or possibly other expanded impacts as a result of\u0026nbsp;memory corruption on an affected device.\r\n\r\nThis vulnerability is due to improper boundary checks for content in Mach-O files during scanning, which may result in an out-of-bounds buffer read. An attacker could exploit this vulnerability by submitting a crafted Mach-O file to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to cause the ClamAV scanning process to terminate, resulting in a DoS condition on the affected software."
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "The Cisco PSIRT is aware that proof-of-concept exploit code is available for the vulnerabilities that are described in CVE-2026-20337 and CVE-2026-20338.\r\n\r\nThe Cisco PSIRT is not aware of proof-of-concept exploit code for any of the other vulnerabilities that are described in this advisory.\r\nThe Cisco PSIRT is not aware of any malicious use of the vulnerabilities that are described in this advisory."
        }
      ],
      "metrics": [
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            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
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          "descriptions": [
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              "description": "Out-of-bounds Read",
              "lang": "en",
              "type": "cwe"
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      "providerMetadata": {
        "dateUpdated": "2026-08-07T16:42:29.284Z",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "name": "cisco-sa-clamav-WuuvVd26",
          "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-WuuvVd26"
        }
      ],
      "source": {
        "advisory": "cisco-sa-clamav-WuuvVd26",
        "defects": [
          "CSCwv55051"
        ],
        "discovery": "EXTERNAL"
      },
      "title": "ClamAV Mach-O File Format Processing Memory Corruption Vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
    "cveId": "CVE-2026-20347",
    "datePublished": "2026-08-07T16:42:29.284Z",
    "dateReserved": "2025-10-08T11:59:15.413Z",
    "dateUpdated": "2026-08-07T21:10:28.338Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-20346 (GCVE-0-2026-20346)

Vulnerability from cvelistv5 – Published: 2026-08-07 16:42 – Updated: 2026-08-07 18:12
VLAI
Title
ClamAV PDF File Format Processing Memory Corruption Vulnerability
Summary
A vulnerability in the PDF file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition or possibly other expanded impacts as a result of memory corruption on an affected device. This vulnerability is due to improper boundary checks for content in PDF files during scanning, which may result in an out-of-bounds buffer read. An attacker could exploit this vulnerability by submitting a crafted PDF file to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to cause the ClamAV scanning process to terminate, resulting in a DoS condition on the affected software.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-07 18:12 UTC
CWE
Impacted products
Vendor Product Version
Cisco Cisco Secure Endpoint Affected: 7.0.5
Affected: 6.2.19
Affected: 7.3.3
Affected: 7.2.13
Affected: 6.1.5
Affected: 6.3.1
Affected: 6.2.5
Affected: 7.3.5
Affected: 6.2.1
Affected: 7.2.7
Affected: 7.1.1
Affected: 6.3.5
Affected: 6.2.9
Affected: 7.3.1
Affected: 6.1.7
Affected: 7.2.11
Affected: 7.2.3
Affected: 7.1.5
Affected: 6.3.3
Affected: 7.3.9
Affected: 6.2.3
Affected: 6.1.9
Affected: 6.0.9
Affected: 7.2.5
Affected: 6.0.7
Affected: 6.3.7
Affected: 1.12.3
Affected: 1.8.0
Affected: 1.11.1
Affected: 1.12.4
Affected: 1.10.0
Affected: 1.12.0
Affected: 1.8.1
Affected: 1.10.1
Affected: 1.12.1
Affected: 1.12.6
Affected: 1.14.0
Affected: 1.10.2
Affected: 1.12.7
Affected: 1.12.2
Affected: 1.6.0
Affected: 1.9.0
Affected: 1.11.0
Affected: 1.7.0
Affected: 1.13.0
Affected: 1.8.4
Affected: 1.13.1
Affected: 1.9.1
Affected: 1.12.5
Affected: 1.13.2
Affected: 2.0.2
Affected: 1.1.0
Affected: 2.0.0
Affected: 2.0.1
Affected: 8.1.7.21512
Affected: 8.1.7
Affected: 8.1.5
Affected: 8.1.3.21242
Affected: 8.1.3
Affected: 8.1.5.21322
Affected: 8.1.7.21417
Affected: 2.1.0.14
Affected: 2.2.0
Affected: 2.3.0
Affected: 2.4.0
Affected: 2.5.0
Affected: 2.6.0
Affected: 2.7.0
Affected: 2.8.0
Affected: 2.9.0
Affected: 2.10.0
Affected: 2.10.1
Affected: 2.11.0
Affected: 1.14.1
Affected: 1.15.1
Affected: 1.15.2
Affected: 1.15.3
Affected: 1.15.4
Affected: 1.15.5
Affected: 1.15.6
Affected: 1.16.0
Affected: 1.16.1
Affected: 1.16.2
Affected: 1.16.3
Affected: 1.18.0
Affected: 1.18.1
Affected: 1.20.0
Affected: 1.21.0
Affected: 1.21.1
Affected: 1.21.2
Affected: 1.21.3
Affected: 1.22.0
Affected: 1.22.1
Affected: 1.22.2
Affected: 1.22.3
Affected: 1.22.4
Affected: 1.24.0
Affected: 1.24.1
Affected: 1.24.2
Affected: 1.24.3
Affected: 1.24.4
Affected: 1.26.0
Affected: 1.24.5
Affected: 1.26.1
Affected: 1.27.0
Affected: 1.15.0
Affected: 1.17.0
Affected: 1.17.1
Affected: 1.17.2
Affected: 1.19.0
Affected: 1.20.1
Affected: 1.20.2
Affected: 1.20.3
Affected: 1.20.4
Affected: 1.20.5
Affected: 1.20.6
Affected: 1.23.0
Affected: 1.23.1
Affected: 1.20.7
Affected: 1.20.8
Affected: 1.25.0
Affected: 1.25.1
Affected: 1.25.2
Affected: 1.27.1
Affected: 1.27.2
Affected: 7.3.13
Affected: 7.3.15
Affected: 7.4.1
Affected: 7.4.1.20425
Affected: 7.4.1.20439
Affected: 7.4.3
Affected: 7.4.3.20679
Affected: 7.4.5
Affected: 7.5.1.20813
Affected: 7.5.1.20833
Affected: 7.5.3
Affected: 7.5.5
Affected: 8.0.1.21160
Affected: 8.0.1.21164
Affected: 7.5.7
Affected: 7.5.9
Affected: 7.5.11
Affected: 8.1.7.21585
Affected: 7.5.13.21586
Affected: 7.5.13.21598
Affected: 8.2.1.21612
Affected: 8.2.1.21650
Affected: 7.5.15.21611
Affected: 7.5.17.21680
Affected: 8.2.3.30119
Affected: 8.2.4.30130
Affected: 8.4.0
Affected: 7.5.19
Affected: 8.4.1.30298
Affected: 8.4.2.30317
Affected: 8.4.1.30307
Affected: 7.5.20
Affected: 8.4.3
Affected: 8.4.4.30419
Affected: 8.4.4.30467
Affected: 7.5.21.21732
Affected: 8.4.5.30483
Create a notification for this product.
Show details on NVD website

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CVE-2026-19955 (GCVE-0-2026-19955)

Vulnerability from cvelistv5 – Published: 2026-08-16 20:00 – Updated: 2026-08-19 15:14
VLAI
Title
TrailDB TOC Validation tdb.c tdb_open out-of-bounds
Summary
A vulnerability was detected in TrailDB 0.6. Impacted is the function tdb_open of the file /src/tdb.c of the component TOC Validation. The manipulation results in out-of-bounds read. It is possible to launch the attack remotely. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-19 15:13 UTC
CWE
References
URL Tags
https://vuldb.com/vuln/391111 vdb-entrytechnical-description
https://vuldb.com/vuln/391111/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-19955 third-party-advisory
https://vuldb.com/submit/872771 third-party-advisory
https://github.com/traildb/traildb/issues/149 exploitissue-tracking
https://github.com/traildb/traildb/ product
Impacted products
Vendor Product Version
n/a TrailDB Affected: 0.6
    cpe:2.3:a:traildb:traildb:*:*:*:*:*:*:*:*
Show details on NVD website

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CVE-2026-19654 (GCVE-0-2026-19654)

Vulnerability from cvelistv5 – Published: 2026-08-12 20:46 – Updated: 2026-09-10 14:10
VLAI
Title
Rsyslog: a configuration-dependent issue in rsyslog's optional imptcp input module can allow an unauthenticated remote peer to crash rsyslogd
Summary
A unauthenticated remote peer may lead rsyslogd to crash due to a flaw in the optional imptcp module. A crafted input sequence during oversize-frame recovery can cause an invalid internal message length and terminate rsyslogd. No confidentiality or integrity impact, privilege escalation, or code execution has been identified. imtcp and the default imptcp framing modes are not affected.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-13 12:58 UTC
CWE
Impacted products
Vendor Product Version
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support Unaffected: 0:8.2412.0-1.el10_0.1 , < * (rpm)
    cpe:/o:redhat:enterprise_linux_eus:10.0
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Red Hat Red Hat Enterprise Linux 10     cpe:/o:redhat:enterprise_linux:10
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9     cpe:/o:redhat:enterprise_linux:9
Create a notification for this product.
Date Public
2026-07-22 10:00
Show details on NVD website

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CVE-2026-19643 (GCVE-0-2026-19643)

Vulnerability from cvelistv5 – Published: 2026-08-12 19:38 – Updated: 2026-08-13 12:36
VLAI
Title
Out-of-bounds read in the Base64 decoder in Amazon aws-sdk-cpp on signed-char platforms
Summary
An out-of-bounds read issue in the Base64 decoder in Amazon aws-sdk-cpp before 1.11.862, on some platforms, might allow a remote authenticated user to crash an application that processes crafted Base64-encoded input. To remediate this issue, users should upgrade to version 1.11.862.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-13 12:36 UTC
CWE
Impacted products
Vendor Product Version
AWS aws-sdk-cpp Affected: 0 , ≤ 1.11.861 (custom)
    cpe:2.3:a:aws:aws-sdk-cpp:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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CVE-2026-19317 (GCVE-0-2026-19317)

Vulnerability from cvelistv5 – Published: 2026-08-27 23:24 – Updated: 2026-09-03 20:49
VLAI
Title
Fireware OS Pre-Authentication Out-of-Bounds Read in iked Allows Denial of Service (DoS)
Summary
An out-of-bounds read vulnerability in the WatchGuard Fireware OS iked process allows a remote unauthenticated attacker to create a Denial of Service (DoS) condition in VPN processing by sending specially crafted network traffic.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-28 16:48 UTC
References
Impacted products
Vendor Product Version
WatchGuard Fireware OS Affected: 2025.0 , < 2026.2.2 (custom)
Affected: 12.0 , < 12.12.2 (custom)
Affected: 2026.3 , < 2026.3.1 (custom)
Create a notification for this product.
WatchGuard Fireware OS Affected: 12.0 , < 12.5.20 (custom)
Create a notification for this product.
Date Public
2026-08-27 23:24
Show details on NVD website

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CVE-2026-19315 (GCVE-0-2026-19315)

Vulnerability from cvelistv5 – Published: 2026-08-27 23:24 – Updated: 2026-09-03 20:49
VLAI
Title
Fireware OS Pre-Authentication Type Confusion in iked Allows Remote Code Execution
Summary
A type confusion vulnerability in the iked process of WatchGuard Fireware OS allows a remote unauthenticated attacker to execute arbitrary code by sending specially crafted network traffic.
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-29 03:55 UTC
References
Impacted products
Vendor Product Version
WatchGuard Fireware OS Affected: 2025.0 , < 2026.2.2 (custom)
Affected: 12.0 , < 12.12.2 (custom)
Affected: 2026.3 , < 2026.3.1 (custom)
Create a notification for this product.
WatchGuard Fireware OS Affected: 12.0 , < 12.5.20 (custom)
Create a notification for this product.
Date Public
2026-08-27 23:24
Show details on NVD website

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Mitigation MIT-5
Implementation

Strategy: Input Validation

  • Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
  • When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, "boat" may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as "red" or "blue."
  • Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code's environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.
  • To reduce the likelihood of introducing an out-of-bounds read, ensure that you validate and ensure correct calculations for any length argument, buffer size calculation, or offset. Be especially careful of relying on a sentinel (i.e. special character such as NUL) in untrusted inputs.
Mitigation
Architecture and Design

Strategy: Language Selection

Use a language that provides appropriate memory abstractions.

CAPEC-540: Overread Buffers

An adversary attacks a target by providing input that causes an application to read beyond the boundary of a defined buffer. This typically occurs when a value influencing where to start or stop reading is set to reflect positions outside of the valid memory location of the buffer. This type of attack may result in exposure of sensitive information, a system crash, or arbitrary code execution.