CVE-2026-16980

MEDIUMNVD 5.56.3▲
EchelonGraph scoreHIGH confidence

Score 6.3 from GitHub Security Advisory published 2026-08-21. NVD baseline CVSS 5.5; sources differ by 0.8.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
6.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.5Exploit: None knownExposed: 0

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

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to cause a denial of service due to improper validation of symbolic links.

CVSS v3
5.5
EG Score
6.3(high)
EG Risk
28(Track)
EG Risk 28/100SSVC: 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
Severity63% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
1%
KEV
Not listed

Published

August 20, 2026

Last Modified

August 24, 2026

Advisory Details (1)

Auto-updated Aug 20, 2026
No patch confirmed yet.
generic

Security Bulletin: Vulnerabilities in IBM AIX and PowerVM VIOS

https://www.ibm.com/support/pages/node/7283858

Vendor Advisories for CVE-2026-16980(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 15× in last 7d / 80× 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. 2026-09-19 20:39 UTCEG score recompute
  2. 2026-09-19 20:39 UTCGHSA enrichment
  3. 2026-09-18 21:38 UTCEG score recompute
  4. 2026-09-18 21:38 UTCGHSA enrichment
  5. 2026-09-18 19:27 UTCEPSS rescore
  6. 2026-09-17 21:18 UTCEG score recompute
  7. 2026-09-17 21:18 UTCGHSA enrichment
  8. 2026-09-16 19:44 UTCEG score recompute
  9. 2026-09-16 19:44 UTCGHSA enrichment
  10. 2026-09-16 14:07 UTCEPSS rescore
  11. 2026-09-15 19:47 UTCEG score recompute
  12. 2026-09-15 19:47 UTCGHSA enrichment
  13. 2026-09-14 20:32 UTCGHSA enrichment
  14. 2026-09-13 21:32 UTCEG score recompute
  15. 2026-09-13 21:32 UTCGHSA enrichment
  16. 2026-09-13 16:46 UTCEPSS rescore
  17. 2026-09-12 22:31 UTCEG score recompute
  18. 2026-09-12 22:31 UTCGHSA enrichment
  19. 2026-09-12 15:00 UTCEPSS rescore
  20. 2026-09-11 23:30 UTCEG score recompute
  21. 2026-09-11 23:30 UTCGHSA enrichment
  22. 2026-09-11 14:52 UTCEPSS rescore
  23. 2026-09-11 09:36 UTCEPSS rescore
  24. 2026-09-11 00:29 UTCEG score recompute
  25. 2026-09-11 00:29 UTCGHSA enrichment
Show 62 more
  1. 2026-09-10 09:34 UTCEPSS rescore
  2. 2026-09-10 01:28 UTCGHSA enrichment
  3. 2026-09-09 02:27 UTCEG score recompute
  4. 2026-09-09 02:26 UTCGHSA enrichment
  5. 2026-09-08 22:00 UTCEPSS rescore
  6. 2026-09-08 03:22 UTCGHSA enrichment
  7. 2026-09-07 04:21 UTCEG score recompute
  8. 2026-09-07 04:20 UTCGHSA enrichment
  9. 2026-09-06 13:47 UTCEPSS rescore
  10. 2026-09-06 05:14 UTCEG score recompute
  11. 2026-09-06 05:13 UTCGHSA enrichment
  12. 2026-09-05 06:13 UTCEG score recompute
  13. 2026-09-05 06:13 UTCGHSA enrichment
  14. 2026-09-04 07:12 UTCEG score recompute
  15. 2026-09-04 07:12 UTCGHSA enrichment
  16. 2026-09-04 05:06 UTCEPSS rescore
  17. 2026-09-03 07:59 UTCEG score recompute
  18. 2026-09-03 07:59 UTCGHSA enrichment
  19. 2026-09-02 14:11 UTCEPSS rescore
  20. 2026-09-02 08:46 UTCGHSA enrichment
  21. 2026-09-01 09:45 UTCEG score recompute
  22. 2026-09-01 09:45 UTCGHSA enrichment
  23. 2026-09-01 04:39 UTCEPSS rescore
  24. 2026-08-31 10:42 UTCEG score recompute
  25. 2026-08-31 10:42 UTCGHSA enrichment
  26. 2026-08-30 19:17 UTCEPSS rescore
  27. 2026-08-30 11:41 UTCEG score recompute
  28. 2026-08-30 11:41 UTCGHSA enrichment
  29. 2026-08-30 01:22 UTCEPSS rescore
  30. 2026-08-29 12:41 UTCEG score recompute
  31. 2026-08-29 12:40 UTCGHSA enrichment
  32. 2026-08-28 21:41 UTCEPSS rescore
  33. 2026-08-28 13:34 UTCGHSA enrichment
  34. 2026-08-27 14:33 UTCEG score recompute
  35. 2026-08-27 14:33 UTCGHSA enrichment
  36. 2026-08-27 14:25 UTCEPSS rescore
  37. 2026-08-26 15:29 UTCEG score recompute
  38. 2026-08-26 15:29 UTCGHSA enrichment
  39. 2026-08-26 14:46 UTCEPSS rescore
  40. 2026-08-25 16:28 UTCEG score recompute
  41. 2026-08-25 16:28 UTCGHSA enrichment
  42. 2026-08-25 13:48 UTCEPSS rescore
  43. 2026-08-24 17:24 UTCEG score recompute
  44. 2026-08-24 17:24 UTCGHSA enrichment
  45. 2026-08-24 17:24 UTCNVD updateCVSS v3 → 5.5
  46. 2026-08-24 16:59 UTCEG score recompute
  47. 2026-08-24 16:59 UTCGHSA enrichment
  48. 2026-08-24 13:24 UTCEG score recompute
  49. 2026-08-24 13:24 UTCGHSA enrichment
  50. 2026-08-23 14:23 UTCEG score recompute
  51. 2026-08-23 14:23 UTCGHSA enrichment
  52. 2026-08-23 00:19 UTCEPSS rescore
  53. 2026-08-22 15:23 UTCEG score recompute
  54. 2026-08-22 15:23 UTCGHSA enrichment
  55. 2026-08-21 23:49 UTCEPSS rescore
  56. 2026-08-21 16:22 UTCEG score recompute
  57. 2026-08-21 16:22 UTCGHSA enrichment
  58. 2026-08-21 15:56 UTCEG score recompute
  59. 2026-08-21 15:56 UTCGHSA enrichment
  60. 2026-08-20 22:24 UTCEG score recompute
  61. 2026-08-20 21:57 UTCEG score recompute
  62. 2026-08-20 21:56 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-16980?
CVE-2026-16980 is a medium vulnerability published on August 20, 2026. IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to cause a denial of service due to improper validation of symbolic links.
When was CVE-2026-16980 disclosed?
CVE-2026-16980 was first published in the National Vulnerability Database on August 20, 2026, with the most recent update on August 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-16980 actively exploited?
CVE-2026-16980 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 98.8% of all scored CVEs.
What is the CVSS score of CVE-2026-16980?
CVE-2026-16980 has a CVSS v3 base score of 5.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 6.3.
How do I remediate CVE-2026-16980?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-16980, 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-2026-16980

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