CVE-2026-74736

HIGHPre-NVD 7.87.8—
EchelonGraph scoreHIGH confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-27. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

In the Linux kernel, the following vulnerability has been resolved:

net/sched: cls_bpf: reject dev-bound programs bound to a different device

cls_bpf_prog_from_efd() obtained a SCHED_CLS program via bpf_prog_get_type_dev() but never verified that a device-bound (offloaded) program's bound netdev matches the TC netdev the classifier is being attached to. This let a program loaded with prog_ifindex for device A be attached via cls_bpf + skip_sw to device B; deleting device A then destroyed the program's offload state while it was still attached to device B, triggering a netdevsim WARN (panic with panic_on_warn=1).

Mirror the XDP attach path (net/core/dev.c) and reject the attach with -EINVAL when a dev-bound program's bound device does not match the target device.

CVSS v3
7.8
EG Score
7.8(high)
EG Risk
40(Track)
EG Risk 40/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity78% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
3%
KEV
Not listed

Published

August 26, 2026

Last Modified

August 27, 2026

Advisory Details (5)

Auto-updated Aug 27, 2026
No patch confirmed yet.
generic

net/sched: cls_bpf: reject dev-bound programs bound to a different device - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ec5a552f4b2d841c6c021752450716e1a9676661
generic

net/sched: cls_bpf: reject dev-bound programs bound to a different device - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/daf546ab5763ce6a18280cb4db060e836c515301
generic

net/sched: cls_bpf: reject dev-bound programs bound to a different device - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/adb3e7c26a51a10d94a241c6de7a81a2863dcacf
generic

net/sched: cls_bpf: reject dev-bound programs bound to a different device - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5685bbbd3cbfbeb0de96a1d275a5ca073dfebb5e
generic

net/sched: cls_bpf: reject dev-bound programs bound to a different device - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/120977e2c096deea4e866e4273be9220b957c29e

Vendor Advisories for CVE-2026-74736(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Data Freshness Timeline

(refreshed 17× in last 7d / 17× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-30 05:04 UTCEG score recompute
  2. 2026-08-30 05:03 UTCGHSA enrichment
  3. 2026-08-30 01:22 UTCEPSS rescore
  4. 2026-08-29 17:23 UTCGHSA enrichment
  5. 2026-08-29 05:09 UTCEG score recompute
  6. 2026-08-29 05:09 UTCGHSA enrichment
  7. 2026-08-28 21:42 UTCEPSS rescore
  8. 2026-08-28 17:27 UTCGHSA enrichment
  9. 2026-08-28 05:44 UTCGHSA enrichment
  10. 2026-08-27 18:06 UTCEG score recompute
  11. 2026-08-27 18:06 UTCGHSA enrichment
  12. 2026-08-27 14:25 UTCEPSS rescore
  13. 2026-08-27 06:22 UTCEG score recompute▲ 7.80
  14. 2026-08-27 06:11 UTCMITRE cvelistV5CVSS v3 → 7.8 · severity → HIGH
  15. 2026-08-26 15:43 UTCNVD update
  16. 2026-08-26 14:44 UTCEG score recompute
  17. 2026-08-26 14:41 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-74736?
CVE-2026-74736 is a high vulnerability published on August 26, 2026. In the Linux kernel, the following vulnerability has been resolved: net/sched: cls_bpf: reject dev-bound programs bound to a different device clsbpfprogfromefd() obtained a SCHED_CLS program via bpfproggettypedev() but never verified that a device-bound (offloaded) program's bound netdev matches…
When was CVE-2026-74736 disclosed?
CVE-2026-74736 was first published in the National Vulnerability Database on August 26, 2026, with the most recent update on August 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-74736 actively exploited?
CVE-2026-74736 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 96.5% of all scored CVEs.
What is the CVSS score of CVE-2026-74736?
CVE-2026-74736 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-74736?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-74736, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-74736

Explore →

Is Your Infrastructure Affected by CVE-2026-74736?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs