CVE-2026-90781

MEDIUMPre-NVD 4.44.4—
EchelonGraph scoreHIGH confidence

Score 4.4 from GitHub Security Advisory published 2026-09-13. a secondary CVSS source baseline 4.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
4.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.4Exploit: None knownExposed: 0

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

alsa-lib through 1.2.16.1 contains a stack buffer overflow in the __snd_ctl_ascii_elem_id_parse() function that writes one byte past a 64-byte buffer when parsing a name= field with 64 or more characters. Attackers can supply a long control-element identifier string through saved state files or command-line arguments to overwrite adjacent stack memory and crash the calling process.

CVSS v3
4.4
EG Score
4.4(high)
EG Risk
20(Track)
EG Risk 20/100SSVC: 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
Severity44% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
8%
KEV
Not listed

Published

September 13, 2026

Last Modified

September 16, 2026

Advisory Details (5)

Auto-updated Sep 13, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
generic

alsa-lib through 1.2.16.1 Off-by-One Stack Buffer Overflow in __snd_ctl_ascii_elem_id_parse() | Advisories | VulnCheck

https://www.vulncheck.com/advisories/alsa-lib-through-1.2.16.1-off-by-one-stack-buffer-overflow-in-snd-ctl-ascii-elem-id-parse
generic

GitHub - alsa-project/alsa-lib: The Advanced Linux Sound Architecture (ALSA) - library · GitHub

https://github.com/alsa-project/alsa-lib
generic

Security: Missed-sibling stack buffer overflow in __snd_ctl_ascii_elem_id_parse() — name= field not fixed by PR #509 - Harsh Raj Singhania

https://lore.kernel.org/alsa-devel/CACBQ=P2FhO3M6dkv3cWuKb6Qhs92ouV+FJ3SJZ_PVBSSdJWRAQ@mail.gmail.com/
generic

alsa-lib/src/control/ctlparse.c at v1.2.16.1 · alsa-project/alsa-lib · GitHub

https://github.com/alsa-project/alsa-lib/blob/v1.2.16.1/src/control/ctlparse.c#L216-L241
github_commit

commit f84cd4ced7b3 (alsa-project/alsa-lib)

Fix landed in alsa-project/alsa-lib commit f84cd4ced7b3 — awaiting tagged release

https://github.com/alsa-project/alsa-lib/commit/f84cd4ced7b36fddb8e4ee24404cf7c091d27020

Vendor Advisories for CVE-2026-90781(1)

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

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 19× in last 7d / 19× 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. 2026-09-18 19:28 UTCEPSS rescore
  2. 2026-09-18 16:40 UTCEG score recompute
  3. 2026-09-18 16:40 UTCGHSA enrichment
  4. 2026-09-17 19:32 UTCEPSS rescore
  5. 2026-09-17 16:05 UTCGHSA enrichment
  6. 2026-09-16 15:30 UTCEG score recompute
  7. 2026-09-16 15:30 UTCGHSA enrichment
  8. 2026-09-16 14:26 UTCEG score recompute
  9. 2026-09-16 14:26 UTCGHSA enrichment
  10. 2026-09-16 14:09 UTCEPSS rescore
  11. 2026-09-16 05:15 UTCEPSS rescore
  12. 2026-09-15 14:30 UTCEG score recompute
  13. 2026-09-15 14:30 UTCGHSA enrichment
  14. 2026-09-15 03:12 UTCEPSS rescore
  15. 2026-09-14 13:55 UTCEG score recompute
  16. 2026-09-14 13:55 UTCGHSA enrichment
  17. 2026-09-13 13:20 UTCEG score recompute
  18. 2026-09-13 12:36 UTCEG score recompute
  19. 2026-09-13 12:34 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-90781?
CVE-2026-90781 is a medium vulnerability published on September 13, 2026. alsa-lib through 1.2.16.1 contains a stack buffer overflow in the sndctlasciielemid_parse() function that writes one byte past a 64-byte buffer when parsing a name= field with 64 or more characters. Attackers can supply a long control-element identifier string through saved state files or…
When was CVE-2026-90781 disclosed?
CVE-2026-90781 was first published in the National Vulnerability Database on September 13, 2026, with the most recent update on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-90781 actively exploited?
CVE-2026-90781 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 92.3% of all scored CVEs.
What is the CVSS score of CVE-2026-90781?
CVE-2026-90781 has a CVSS v3 base score of 4.4 (NVD).
How do I remediate CVE-2026-90781?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-90781, 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

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