7.5

CVE-2026-74695: linux

CVSS: 7.5v3.1HighReceived
AliasesUBUNTU-CVE-2026-74695DEBIAN-CVE-2026-74695
Published 22-08-2026Last modified 21-10-2026
Open JSON

Vulnerability summary

CVE-2026-74695 is a high (CVSS 7.5) vulnerability in linux. EPSS estimates a 0.43% chance of exploitation in the next 30 days, higher than 35.7% 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
0.43%
0%100%
Low · 0.00 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
MGASA-2026-0506OPENSUSE-SU-2026:21910-1SUSE-SU-2026:23477-1SUSE-SU-2026:23481-1SUSE-SU-2026:23528-1SUSE-SU-2026:23529-1

Timeline

  1. 22-08-2026
    PublishedVulnerability first disclosed.
  2. 21-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_flow_table: drop existing skb dst before skb_dst_set_noref() Incoming skbs passing through netfilter flowtable offload hooks (or XFRM offload path) might already carry a ref-counted dst_entry assigned during earlier RX or routing steps. Calling skb_dst_set_noref() when skb already holds a ref-counted dst overwrites skb->_skb_refdst, leaking the previous dst_entry reference count and triggering a DEBUG_NET_WARN_ON_ONCE assertion in skb_dst_check_unset(): WARNING: at skb_dst_check_unset include/linux/skbuff.h:1170 WARNING: at skb_dst_set_noref include/linux/skbuff.h:1234 WARNING: at nf_flow_offload_ip_hook+0xf6c/0x2b60 net/netfilter/nf_flow_table_ip.c:864 Drop any existing dst_entry reference with skb_dst_drop(skb) before setting the non-referenced flowtable destination.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.43%

Chance of exploitation in the next 30 days

Percentile

36%

Versus all other CVEs

30-day change

0.00 pp

From 0.43% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.43%

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

Ubuntu165 products
  • linuxAll versions (No fix recorded)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linuxAll versions (No fix recorded) | < 7.1.9-1
Linux1 product
  • linux≥ 2a79fd3908acd88e6cb0e620c314d7b1fee56a02, < 4db3b48a966ed479b99cc8319ea9e46d4f7c703b | ≥ 2a79fd3908acd88e6cb0e620c314d7b1fee56a02, < 274f544a32c08638ee887f2e27e3235b6b1237d4 | ≥ 2a79fd3908acd88e6cb0e620c314d7b1fee56a02, < 12afa450a6a6c0cce2c42b7545a9958f62d8a00c | ≥ 2a79fd3908acd88e6cb0e620c314d7b1fee56a02, < 538e67e8c7889cf5f93951f5309d1bcb41f86036 | ≥ 2a79fd3908acd88e6cb0e620c314d7b1fee56a02, < 8aecf0bbcc72605592134c917c222207d8f63ab0 | b4b1adf2e66ecc7125c4117e7aad9ff61e2cfd27 | 209dedf806d31095968f54323dbe62525b077b33 | ≥ 4.16.15, < 4.17 | ≥ 4.17.1, < 4.18 | 4.18

3 vendors · 167 products

References

9 links