Vulnerability-Lookup

FKIE_CVE-2025-39702

Vulnerability from fkie_nvd - Published: 2025-09-05 18:15 - Updated: 2026-01-08 16:00

Severity ?

7.0 (High) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: ipv6: sr: Fix MAC comparison to be constant-time To prevent timing attacks, MACs need to be compared in constant time. Use the appropriate helper function for this.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3b348c9c8d2ca2c67559ffd0e258ae7e1107d4f0	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3ddd55cf19ed6cc62def5e3af10c2a9df1b861c3	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/86b6d34717fe0570afce07ee79b8eeb40341f831	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/a458b2902115b26a25d67393b12ddd57d1216aaa	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/b3967c493799e63f648e9c7b6cb063aa2aed04e7	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f7878d47560d61e3f370aca3cebb8f42a55b990a	Patch
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html	Third Party Advisory

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	6.17
linux	linux_kernel	6.17
debian	debian_linux	11.0

JSON

To clipboard

{
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    {
      "nodes": [
        {
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    }
  ],
  "id": "CVE-2025-39702",
  "lastModified": "2026-01-08T16:00:10.923",
  "metrics": {
    "cvssMetricV31": [
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        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.0,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.0,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "description": [
        {
          "lang": "en",
          "value": "CWE-203"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2025-39702 (GCVE-0-2025-39702)

Vulnerability from cvelistv5 – Published: 2025-09-05 17:21 – Updated: 2025-11-03 17:42

Title

ipv6: sr: Fix MAC comparison to be constant-time

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/3b348c9c8d2ca2c67…
	https://git.kernel.org/stable/c/86b6d34717fe0570a…
	https://git.kernel.org/stable/c/3ddd55cf19ed6cc62…
	https://git.kernel.org/stable/c/b3967c493799e63f6…
	https://git.kernel.org/stable/c/f7878d47560d61e3f…
	https://git.kernel.org/stable/c/a458b2902115b26a2…

Impacted products

Vendor

Product

Version

Linux

Affected: bf355b8d2c30a289232042cacc1cfaea4923936c , < 3b348c9c8d2ca2c67559ffd0e258ae7e1107d4f0 (git)
Affected: bf355b8d2c30a289232042cacc1cfaea4923936c , < 86b6d34717fe0570afce07ee79b8eeb40341f831 (git)
Affected: bf355b8d2c30a289232042cacc1cfaea4923936c , < 3ddd55cf19ed6cc62def5e3af10c2a9df1b861c3 (git)
Affected: bf355b8d2c30a289232042cacc1cfaea4923936c , < b3967c493799e63f648e9c7b6cb063aa2aed04e7 (git)
Affected: bf355b8d2c30a289232042cacc1cfaea4923936c , < f7878d47560d61e3f370aca3cebb8f42a55b990a (git)
Affected: bf355b8d2c30a289232042cacc1cfaea4923936c , < a458b2902115b26a25d67393b12ddd57d1216aaa (git)

Linux

Affected: 4.10
Unaffected: 0 , < 4.10 (semver)
Unaffected: 5.15.190 , ≤ 5.15.* (semver)
Unaffected: 6.1.149 , ≤ 6.1.* (semver)
Unaffected: 6.6.103 , ≤ 6.6.* (semver)
Unaffected: 6.12.44 , ≤ 6.12.* (semver)
Unaffected: 6.16.4 , ≤ 6.16.* (semver)
Unaffected: 6.17 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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        "providerMetadata": {
          "dateUpdated": "2025-11-03T17:42:30.669Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
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        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
          }
        ],
        "title": "CVE Program Container"
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Sightings

Author	Source	Type	Date

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.

Action not permitted

FKIE_CVE-2025-39702

CVE-2025-39702 (GCVE-0-2025-39702)

Tags

Sightings

Nomenclature