8.7

CVE-2026-72413: linux

CVSS: 8.7v4.0HighReceived
AliasesUBUNTU-CVE-2026-72413DEBIAN-CVE-2026-72413
Published 15-08-2026Last modified 03-10-2026
Open JSON

Vulnerability summary

CVE-2026-72413 is a high (CVSS 8.7) vulnerability in linux. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 10.8% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.7/10
010
High · v4.0 (OSV · Ubuntu), selected by version preference
EPSS score
0.21%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 16 · Related 16
OPENSUSE-SU-2026:22091-1SUSE-SU-2026:24179-1SUSE-SU-2026:24181-1SUSE-SU-2026:24182-1SUSE-SU-2026:24184-1SUSE-SU-2026:24197-1

Timeline

  1. 15-08-2026
    PublishedVulnerability first disclosed.
  2. 03-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: sctp: fix err_chunk memory leaks in INIT handling When sctp_verify_init() encounters unrecognized parameters, it allocates an err_chunk to report them. However, this chunk is leaked in several code paths: 1. In sctp_sf_do_5_1B_init(), if security_sctp_assoc_request() fails after sctp_verify_init() has populated err_chunk, the function returns immediately without freeing it. 2. In sctp_sf_do_unexpected_init(), the same leak occurs on the security_sctp_assoc_request() failure path. 3. In sctp_sf_do_unexpected_init(), on the success path after copying unrecognized parameters to the INIT-ACK, the function returns without freeing err_chunk, unlike sctp_sf_do_5_1B_init() which properly frees it. Fix all three leaks by adding sctp_chunk_free(err_chunk) calls before returning in the error paths and on the success path in sctp_sf_do_unexpected_init().

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

0.21%

Chance of exploitation in the next 30 days

Percentile

11%

Versus all other CVEs

30-day change

+0.02 pp

From 0.19% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.21%

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

Ubuntu169 products
  • linuxAll versions (No fix recorded) | < 7.0.0-38.38
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 7.0.0-1014.14
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
  • linuxAll versions (No fix recorded) | < 6.1.190-1 | < 6.12.111-1 | < 7.1.5-1
  • linux-6.12< 6.12.111-1~deb12u1
Linux1 product
  • linux≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < a8e6a839c0e7ca1da752faaab51e2eafb17483a4 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 43ddbcdc0ed74a8fba4aff5e623ace8135411b93 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 6acedac7a14af71cfe25024ead28e16a070899e4 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 1cae40d423a2042c7970f29c00028951ec20db8a | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 94f55994e19e8f0676990b9d5015b58ab6a97e00 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 9f58a0a4d6c2ed5d341bba64f058f15d1b0c36f2 | 2.6.12

3 vendors · 172 products

References

16 links
Show all 16 references