9.8

CVE-2026-74616: linux

CVSS: 9.8v3.1CriticalReceived
AliasesUBUNTU-CVE-2026-74616DEBIAN-CVE-2026-74616
Published 22-08-2026Last modified 16-10-2026
Open JSON

Vulnerability summary

CVE-2026-74616 is a critical (CVSS 9.8) vulnerability in linux. EPSS estimates a 0.51% chance of exploitation in the next 30 days, higher than 42.5% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.51%
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 19 · Related 18
MGASA-2026-0506OPENSUSE-SU-2026:21910-1SUSE-SU-2026:23881-1SUSE-SU-2026:23887-1SUSE-SU-2026:23897-1SUSE-SU-2026:23902-1

Timeline

  1. 22-08-2026
    PublishedVulnerability first disclosed.
  2. 16-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: xdp: reject clones that overrun skb_shared_info tailroom xdpf_clone() clones broadcast copies into a single page and sets frame_sz to PAGE_SIZE. __xdp_build_skb_from_frame() later treats that page like a normal XDP frame and expects the usual skb_shared_info tailroom at the end of the buffer. The current check only rejects frames whose linear xdp_frame header, headroom, and packet data exceed PAGE_SIZE. A source frame backed by a larger allocation can still satisfy that check while extending into the clone's required shared-info area. When such a clone is converted back into an skb, build_skb_around() places skb_shared_info over live packet bytes and later writes can corrupt XDP return metadata. Reject clones unless their linear area fits inside SKB_WITH_OVERHEAD(PAGE_SIZE), matching the tailroom requirement already enforced by the XDP-to-skb conversion path.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.51%

Chance of exploitation in the next 30 days

Percentile

43%

Versus all other CVEs

30-day change

0.00 pp

From 0.51% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.51%

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

Ubuntu157 products
  • linux< 5.15.0-198.208 | All versions (No fix recorded)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.15.0-1117.124 | All versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
  • linux< 6.1.187-1 | < 6.12.105-1 | < 7.1.9-1
  • linux-6.12< 6.12.107-1~deb12u1
Linux1 product
  • linux≥ e624d4ed4aa8cc3c69d1359b0aaea539203ed266, < 58408982fa39f9758124cec169f42854d6f98f35 | ≥ e624d4ed4aa8cc3c69d1359b0aaea539203ed266, < 685edea27ac68d08fe4dbd3de74b858d2ad8e830 | ≥ e624d4ed4aa8cc3c69d1359b0aaea539203ed266, < ba13763d667e008e185fedf592d53846a5b457d1 | ≥ e624d4ed4aa8cc3c69d1359b0aaea539203ed266, < ef4b7c7046d29a67090de15af0da0d1ae8d1b192 | ≥ e624d4ed4aa8cc3c69d1359b0aaea539203ed266, < fab820f1691a9e26d9031f18aae1e9ce09078f92 | ≥ e624d4ed4aa8cc3c69d1359b0aaea539203ed266, < f463b6f4957c9c3fd1c75f8d3e5af4879fa609c0 | ≥ e624d4ed4aa8cc3c69d1359b0aaea539203ed266, < e48e8edbef2eb824201495daa5234560f632b23c | 5.14

3 vendors · 160 products

References

17 links
Show all 17 references