7.5

CVE-2026-64414: linux

CVSS: 7.5v3.1HighAnalyzed
AliasesUBUNTU-CVE-2026-64414DEBIAN-CVE-2026-64414
Published 25-07-2026Last modified 17-08-2026
Open JSON

Vulnerability summary

CVE-2026-64414 is a high (CVSS 7.5) vulnerability in linux. EPSS estimates a 0.63% chance of exploitation in the next 30 days, higher than 49.4% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.63%
0%100%
Low · +0.19 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 18 · Related 17
OPENSUSE-SU-2026:11476-1OPENSUSE-SU-2026:22091-1RHSA-2026:68507SUSE-SU-2026:24179-1SUSE-SU-2026:24184-1SUSE-SU-2026:24197-1

Timeline

  1. 25-07-2026
    PublishedVulnerability first disclosed.
  2. 17-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: handle unreadable frags sashiko reports: When an skb with unreadable fragments (such as from devmem TCP, where skb_frags_readable(skb) returns false) is processed by the u32 module, skb_copy_bits() will safely return a negative error code [..] xt_u32: bail out with hotdrop in this case. gather_frags: return -1, just as if we had no fragment header. nfnetlink_queue: restrict to the linear part. nfnetlink_log: restrict to the linear part. v2: - skb_zerocopy helpers don't copy readable flag, i.e. nfnetlink_queue is broken too xt_u32 shouldn't return true if hotdrop was set.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.63%

Chance of exploitation in the next 30 days

Percentile

49%

Versus all other CVEs

30-day change

+0.19 pp

From 0.44% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.63%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu119 products
  • linux< 7.0.0-31.31
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 7.0.0-1012.12
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
  • linux< 6.12.96-1 | < 7.1.4-1
  • linux-6.12< 6.12.100-1~deb12u1
Linux2 products
  • linux≥ 65249feb6b3df9e17bab5911ee56fa7b0971e231, < 3b13e7635795394705920cca1e1db7e4ca2e334b | ≥ 65249feb6b3df9e17bab5911ee56fa7b0971e231, < fc5bfe63bacf8a3ae307b62b34206406ca733354 | ≥ 65249feb6b3df9e17bab5911ee56fa7b0971e231, < 57056be3ec12e7d9ecd20a60d4060f510e4f284c | ≥ 65249feb6b3df9e17bab5911ee56fa7b0971e231, < da5b58478a9c1b85608c9e40a3b8432d071b409e | 6.12
  • linux_kernel≥ 6.12, < 6.12.96 | ≥ 6.13, < 6.18.39 | ≥ 6.19, < 7.1.4 | 7.2:rc1 | 7.2:rc2

3 vendors · 123 products

References

19 links
Show all 19 references