CVE-2026-12080

HIGHPre-NVD 7.37.3—
EchelonGraph scoreMEDIUM confidence

Score 7.3 from GitHub Security Advisory (severity: HIGH) published 2026-07-20. a secondary CVSS source baseline 7.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.3Exploit: None knownExposed: 0

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

A flaw was found in the QEMU Guest Agent (qga). A local unprivileged user can exploit a vulnerability in the guest-ssh-add-authorized-keys command handler by manipulating symbolic links. This can occur either through a deterministic directory-symlink bypass or a Time-of-Check to Time-of-Use (TOCTOU) file-symlink race. Successful exploitation allows the attacker to gain ownership of arbitrary root-owned files or directories, leading to root access. This vulnerability requires an external management layer (e.g., libvirt) to trigger the affected code path.

CVSS v3
7.3
EG Score
7.3(medium)
EG Risk
33(Track)
EG Risk 33/100SSVC: 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
Severity73% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
8%
KEV
Not listed

Published

July 20, 2026

Last Modified

August 31, 2026

Advisory Details (3)

Auto-updated Jul 20, 2026
🔬 Proof of concept available. Patch available. Sources: redhat.
generic🟡 PoC Available

Local privilege escalation in qemu-guest-agent (guest-ssh-add-authorized-keys, symlink-following chown) (#3929) · Issues · QEMU / QEMU · GitLab

https://gitlab.com/qemu-project/qemu/-/work_items/3929
redhat

2499603 – (CVE-2026-12080) CVE-2026-12080 qemu-kvm: qemu-guest-agent: Local privilege escalation via symlink attack in guest-ssh-add-authorized-keys

https://bugzilla.redhat.com/show_bug.cgi?id=2499603
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-12080

Vendor Advisories for CVE-2026-12080(2)

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

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
qemu1:10.0.0+ds-1 ... 1:9.2.2+ds-1~bpo12+1 (225 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
qemu1:10.0.0+ds-1 ... 1:9.2.2+ds-1~bpo12+1 (199 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
qemu1:10.0.10+ds-0+deb13u1 ... 1:11.1.1+ds-1 (65 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
qemu1:10.0.2+ds-2 ... 1:11.1.1+ds-1 (56 versions)——

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 23× in last 7d / 98× 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.

Showing the most recent 100 of 210 total refreshes for this CVE.

  1. 2026-09-18 19:27 UTCEPSS rescore
  2. 2026-09-18 03:59 UTCEG score recompute
  3. 2026-09-18 03:59 UTCVendor advisory
  4. 2026-09-18 03:59 UTCGHSA enrichment
  5. 2026-09-17 05:15 UTCEG score recompute
  6. 2026-09-17 05:15 UTCVendor advisory
  7. 2026-09-17 05:15 UTCGHSA enrichment
  8. 2026-09-16 12:48 UTCEG score recompute
  9. 2026-09-16 12:48 UTCVendor advisory
  10. 2026-09-16 12:48 UTCGHSA enrichment
  11. 2026-09-16 05:14 UTCEPSS rescore
  12. 2026-09-14 10:20 UTCVendor advisory
  13. 2026-09-14 10:20 UTCGHSA enrichment
  14. 2026-09-13 22:51 UTCEG score recompute
  15. 2026-09-13 22:51 UTCVendor advisory
  16. 2026-09-13 22:51 UTCGHSA enrichment
  17. 2026-09-13 16:46 UTCEPSS rescore
  18. 2026-09-13 08:56 UTCVendor advisory
  19. 2026-09-13 08:56 UTCGHSA enrichment
  20. 2026-09-12 21:28 UTCEG score recompute
  21. 2026-09-12 21:28 UTCVendor advisory
  22. 2026-09-12 21:28 UTCGHSA enrichment
  23. 2026-09-12 15:00 UTCEPSS rescore
  24. 2026-09-12 10:00 UTCVendor advisory
  25. 2026-09-12 10:00 UTCGHSA enrichment
Show 75 more
  1. 2026-09-11 20:58 UTCEG score recompute
  2. 2026-09-11 20:58 UTCVendor advisory
  3. 2026-09-11 20:58 UTCGHSA enrichment
  4. 2026-09-11 14:52 UTCEPSS rescore
  5. 2026-09-11 09:36 UTCEPSS rescore
  6. 2026-09-11 09:29 UTCEG score recompute
  7. 2026-09-11 09:29 UTCGHSA enrichment
  8. 2026-09-10 09:34 UTCEPSS rescore
  9. 2026-09-09 11:59 UTCEG score recompute
  10. 2026-09-09 11:59 UTCVendor advisory
  11. 2026-09-09 11:59 UTCGHSA enrichment
  12. 2026-09-08 22:00 UTCEPSS rescore
  13. 2026-09-07 22:57 UTCEG score recompute
  14. 2026-09-07 22:57 UTCVendor advisory
  15. 2026-09-07 22:57 UTCGHSA enrichment
  16. 2026-09-07 16:01 UTCEPSS rescore
  17. 2026-09-06 13:47 UTCEPSS rescore
  18. 2026-09-06 11:47 UTCGHSA enrichment
  19. 2026-09-05 21:04 UTCEG score recompute
  20. 2026-09-05 21:04 UTCGHSA enrichment
  21. 2026-09-05 09:36 UTCEG score recompute
  22. 2026-09-05 09:36 UTCGHSA enrichment
  23. 2026-09-04 05:06 UTCEPSS rescore
  24. 2026-09-02 14:11 UTCEPSS rescore
  25. 2026-09-01 13:53 UTCEPSS rescore
  26. 2026-09-01 04:39 UTCEPSS rescore
  27. 2026-08-31 17:24 UTCEG score recompute
  28. 2026-08-31 17:24 UTCGHSA enrichment
  29. 2026-08-31 17:06 UTCEG score recompute
  30. 2026-08-31 17:06 UTCGHSA enrichment
  31. 2026-08-31 02:59 UTCEG score recompute
  32. 2026-08-31 02:59 UTCGHSA enrichment
  33. 2026-08-30 19:17 UTCEPSS rescore
  34. 2026-08-30 15:31 UTCGHSA enrichment
  35. 2026-08-30 02:39 UTCEG score recompute
  36. 2026-08-30 02:39 UTCGHSA enrichment
  37. 2026-08-30 01:21 UTCEPSS rescore
  38. 2026-08-28 21:40 UTCEPSS rescore
  39. 2026-08-27 23:10 UTCEG score recompute
  40. 2026-08-27 23:10 UTCGHSA enrichment
  41. 2026-08-27 14:24 UTCEPSS rescore
  42. 2026-08-27 11:43 UTCGHSA enrichment
  43. 2026-08-26 23:09 UTCEG score recompute
  44. 2026-08-26 23:09 UTCGHSA enrichment
  45. 2026-08-26 11:40 UTCGHSA enrichment
  46. 2026-08-25 23:59 UTCEG score recompute
  47. 2026-08-25 23:59 UTCGHSA enrichment
  48. 2026-08-25 13:48 UTCEPSS rescore
  49. 2026-08-25 12:30 UTCGHSA enrichment
  50. 2026-08-25 00:56 UTCEG score recompute
  51. 2026-08-25 00:56 UTCGHSA enrichment
  52. 2026-08-24 13:29 UTCEG score recompute
  53. 2026-08-24 13:29 UTCGHSA enrichment
  54. 2026-08-24 12:20 UTCEG score recompute
  55. 2026-08-24 12:20 UTCGHSA enrichment
  56. 2026-08-24 11:23 UTCEG score recompute
  57. 2026-08-24 11:23 UTCGHSA enrichment
  58. 2026-08-24 10:56 UTCEG score recompute
  59. 2026-08-24 10:56 UTCGHSA enrichment
  60. 2026-08-24 06:19 UTCGHSA enrichment
  61. 2026-08-23 18:33 UTCGHSA enrichment
  62. 2026-08-23 07:06 UTCEG score recompute
  63. 2026-08-23 07:06 UTCGHSA enrichment
  64. 2026-08-23 00:19 UTCEPSS rescore
  65. 2026-08-22 19:38 UTCGHSA enrichment
  66. 2026-08-22 08:10 UTCEG score recompute
  67. 2026-08-22 08:10 UTCGHSA enrichment
  68. 2026-08-21 23:48 UTCEPSS rescore
  69. 2026-08-21 20:42 UTCGHSA enrichment
  70. 2026-08-21 09:14 UTCEG score recompute
  71. 2026-08-21 09:14 UTCGHSA enrichment
  72. 2026-08-20 22:55 UTCEPSS rescore
  73. 2026-08-20 21:47 UTCGHSA enrichment
  74. 2026-08-20 10:19 UTCGHSA enrichment
  75. 2026-08-19 22:52 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-12080?
CVE-2026-12080 is a high vulnerability published on July 20, 2026. A flaw was found in the QEMU Guest Agent (qga). A local unprivileged user can exploit a vulnerability in the guest-ssh-add-authorized-keys command handler by manipulating symbolic links. This can occur either through a deterministic directory-symlink bypass or a Time-of-Check to Time-of-Use…
When was CVE-2026-12080 disclosed?
CVE-2026-12080 was first published in the National Vulnerability Database on July 20, 2026, with the most recent update on August 31, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-12080 actively exploited?
CVE-2026-12080 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 92.1% of all scored CVEs.
What is the CVSS score of CVE-2026-12080?
CVE-2026-12080 has a CVSS v3 base score of 7.3 (NVD).
How do I remediate CVE-2026-12080?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-12080, 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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