CVE-2026-55280

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-10-05. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 5 sources updated this week
8.8EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 8.8Exploit: None knownExposed services: Not assessed

A fix is referenced (a reference tagged "Patch", often a source commit), but no release containing it is confirmed — find the release that contains it; until it is applied, mitigate (WAF / firewall / segmentation).

In multiple locations, there is a possible out-of-bounds write due to uninitialized data. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

CVSS v3
8.8
EG Score
8.8HIGHhigh confidence
EG Risk
40
EG Risk 40/100CISA SSVC

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
Severity88% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines; until then, restrict network exposure of the affected system or apply the vendor's mitigation.
EPSS PROB
0.2%
EPSS %ILE
12th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

October 5, 2026

Last Modified

October 7, 2026

Advisory Details (1)

Auto-updated Oct 5, 2026
Fix referenced — no release confirmed yet.
generic

Android Security Bulletin—October 2026  |  Android Open Source Project

https://source.android.com/docs/security/bulletin/2026/2026-10-01

Vendor Advisories for CVE-2026-55280(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 28× in last 7d / 28× 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. 2026-10-10 20:45 UTCEG score recompute
  2. 2026-10-10 20:45 UTCGHSA enrichment
  3. 2026-10-10 20:00 UTCEPSS rescore
  4. 2026-10-10 07:45 UTCEG score recompute
  5. 2026-10-10 07:45 UTCGHSA enrichment
  6. 2026-10-09 20:07 UTCEPSS rescore
  7. 2026-10-09 18:47 UTCGHSA enrichment
  8. 2026-10-09 05:48 UTCEG score recompute
  9. 2026-10-09 05:48 UTCGHSA enrichment
  10. 2026-10-08 17:12 UTCEPSS rescore
  11. 2026-10-08 16:48 UTCGHSA enrichment
  12. 2026-10-08 03:49 UTCEG score recompute
  13. 2026-10-08 03:49 UTCGHSA enrichment
  14. 2026-10-07 23:48 UTCEPSS rescore
  15. 2026-10-07 14:50 UTCGHSA enrichment
  16. 2026-10-07 03:50 UTCEG score recompute
  17. 2026-10-07 03:50 UTCGHSA enrichment
  18. 2026-10-06 15:18 UTCEPSS rescore
  19. 2026-10-06 14:51 UTCGHSA enrichment
  20. 2026-10-06 04:35 UTCGHSA enrichment
  21. 2026-10-06 04:04 UTCEG score recompute
  22. 2026-10-06 04:03 UTCGHSA enrichment
  23. 2026-10-05 20:24 UTCNVD updateCVSS v3 → 8.8 · severity → HIGH
  24. 2026-10-05 19:24 UTCNVD update
  25. 2026-10-05 19:21 UTCEG score recompute▲ 8.80
Show 3 more
  1. 2026-10-05 19:20 UTCMITRE cvelistV5CVSS v3 → 8.8 · severity → HIGH
  2. 2026-10-05 18:49 UTCEG score recompute
  3. 2026-10-05 18:45 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-55280?
CVE-2026-55280 is a high vulnerability published on October 5, 2026. In multiple locations, there is a possible out-of-bounds write due to uninitialized data. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
When was CVE-2026-55280 disclosed?
CVE-2026-55280 was first published on October 5, 2026, with the most recent update on October 7, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-55280 actively exploited?
CVE-2026-55280 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (12th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-55280?
CVE-2026-55280 has a CVSS v3.1 base score of 8.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-55280?
A fix for CVE-2026-55280 is referenced (a reference tagged "Patch", often a source commit), but EchelonGraph has no release containing it on record. Check that reference and the vendor's advisory for a release that contains the fix and update to it; until then, restrict network exposure of the affected system or apply the vendor's mitigation. The vendor advisories EchelonGraph has for CVE-2026-55280 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-55280

Explore →

Is Your Infrastructure Affected by CVE-2026-55280?

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

Book a Demo →Browse All CVEs