CVE-2025-52881

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.6% (45th percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Trending — 3 sources updated this weekElevated
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 7.5Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

runc is a CLI tool for spawning and running containers according to the OCI specification. In versions 1.2.7, 1.3.2 and 1.4.0-rc.2, an attacker can trick runc into misdirecting writes to /proc to other procfs files through the use of a racing container with shared mounts (we have also verified this attack is possible to exploit using a standard Dockerfile with docker buildx build as that also permits triggering parallel execution of containers with custom shared mounts configured). This redirect could be through symbolic links in a tmpfs or theoretically other methods such as regular bind-mounts. While similar, the mitigation applied for the related CVE, CVE-2019-19921, was fairly limited and effectively only caused runc to verify that when LSM labels are written they are actually procfs files. This issue is fixed in versions 1.2.8, 1.3.3, and 1.4.0-rc.3.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
50
EG Risk 50/100CISA 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
Severity75% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.6%
EPSS %ILE
45th
KEV
Not listed

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

A fix is available. Apply it within your standard update timelines.

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

November 6, 2025

Last Modified

October 7, 2026

Advisory Details (10)

Auto-updated Oct 7, 2026
Patch available. Sources: github_commit.
github_commit

commit 77d217c7c377 (opencontainers/runc)

Fix landed in opencontainers/runc commit 77d217c7c377 — awaiting tagged release

https://github.com/opencontainers/runc/commit/77d217c7c3775d8ca5af89e477e81568ef4572db
github_commit

commit 77889b56db93 (opencontainers/runc)

Fix landed in opencontainers/runc commit 77889b56db93 — awaiting tagged release

https://github.com/opencontainers/runc/commit/77889b56db939c323d29d1130f28f9aea2edb544
github_commit

commit 6fc191449109 (opencontainers/runc)

Fix landed in opencontainers/runc commit 6fc191449109 — awaiting tagged release

https://github.com/opencontainers/runc/commit/6fc191449109ea14bb7d61238f24a33fe08c651f
github_commit

commit 4b37cd93f86e (opencontainers/runc)

Fix landed in opencontainers/runc commit 4b37cd93f86e — awaiting tagged release

https://github.com/opencontainers/runc/commit/4b37cd93f86e72feac866442988b549b5b7bf3e6
github_commit

commit 44a0fcf685db (opencontainers/runc)

Fix landed in opencontainers/runc commit 44a0fcf685db — awaiting tagged release

https://github.com/opencontainers/runc/commit/44a0fcf685db051c80b8c269812bb177f5802c58
github_commit

commit 435cc81be6b7 (opencontainers/runc)

Fix landed in opencontainers/runc commit 435cc81be6b7 — awaiting tagged release

https://github.com/opencontainers/runc/commit/435cc81be6b79cdec73b4002c0dae549b2f6ae6d
github_commit

commit 3f925525b44d (opencontainers/runc)

Fix landed in opencontainers/runc commit 3f925525b44d — awaiting tagged release

https://github.com/opencontainers/runc/commit/3f925525b44d247e390e529e772a0dc0c0bc3557
generic

runc/RELEASES.md at v1.4.0-rc.2 · opencontainers/runc · GitHub

https://github.com/opencontainers/runc/blob/v1.4.0-rc.2/RELEASES.md
github_commit

commit fdcc9d3cad2f (opencontainers/runc)

Fix landed in opencontainers/runc commit fdcc9d3cad2f — awaiting tagged release

http://github.com/opencontainers/runc/commit/fdcc9d3cad2f85954a241ccb910a61aaa1ef47f3
github_commit

commit a41366e74080 (opencontainers/runc)

Fix landed in opencontainers/runc commit a41366e74080 — awaiting tagged release

http://github.com/opencontainers/runc/commit/a41366e74080fa9f26a2cd3544e2801449697322

Vendor Advisories for CVE-2025-52881(20)

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

Patch Availability(30)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatmulticluster-engine/hypershift-rhel9-operator:17901680542026-09-28redhat
redhatrhaiis/vllm-cuda-rhel9:17878605802026-08-31redhat
redhatrhaiis/model-opt-cuda-rhel9:17877721572026-08-31redhat
redhatrhaiis/vllm-rocm-rhel9:17878848732026-08-31redhat
redhatrhmtc/openshift-migration-controller-rhel8:17839533722026-07-20redhat
redhatrhoso-operators/prometheus-podman-exporter-rhel9:17821401882026-07-15redhat
redhatodf4/rook-ceph-rhel9-operator:17829342842026-07-09redhat
redhatodf4/rook-ceph-rhel9-operator:17787974462026-05-19redhat
redhatcontainer-tools:rhel8-8060020260422144418.ad008a3a2026-04-27redhat
redhatcompliance/openshift-compliance-must-gather-rhel8:17756413442026-04-16redhat
redhatrunc-4:1.2.9-1.el9_02026-04-15redhat
redhatcontainer-tools:rhel8-8080020260226135022.63b345852026-03-17redhat
redhatpodman-2:4.4.1-22.el9_2.52026-03-12redhat
redhatrunc-4:1.2.9-1.el9_2.12026-03-12redhat
redhatbuildah-1:1.29.5-1.el9_2.22026-03-12redhat
redhatquay/quay-rhel8:17730976212026-03-10redhat
redhatquay/quay-rhel8:17730888622026-03-10redhat
redhatrhoai/odh-workbench-jupyter-trustyai-cpu-py312-rhel9:17718741812026-03-04redhat
redhatbuildah-2:1.33.12-4.rhaos4.19.el92026-03-04redhat
redhatbuildah-2:1.33.12-3.rhaos4.17.el82026-03-04redhat
redhatbuildah-2:1.33.12-2.rhaos4.18.el92026-02-25redhat
redhatnetwork-observability/network-observability-cli-rhel9:17712260602026-02-18redhat
redhatoadp/oadp-velero-plugin-rhel9:17706435542026-02-18redhat
redhatquay/quay-rhel8:17708561032026-02-16redhat
redhatquay/quay-rhel8:17702491832026-02-16redhat
redhatquay/quay-rhel9:17708369012026-02-12redhat
redhatrhoai/odh-model-registry-job-async-upload-rhel9:17703588472026-02-12redhat
redhatdevspaces/udi-rhel9:17701645982026-02-10redhat
redhatoadp/oadp-velero-plugin-rhel9:17686025582026-02-09redhat
redhatrhoai/odh-workbench-jupyter-trustyai-cpu-py312-rhel9:17700554252026-02-05redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(6 across 5 ecosystems)
Go(2)
PackageVulnerable rangeFix by version rangeDependents
github.com/opencontainers/runc—
  • every version up to 1.2.8: fixed in 1.2.8
  • 1.3.0-rc.1 up to 1.3.3: fixed in 1.3.3
  • 1.4.0-rc.1 up to 1.4.0-rc.3: fixed in 1.4.0-rc.3
—
github.com/opencontainers/selinux—
  • every version up to 1.13.0: fixed in 1.13.0
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
runc1.0.0+ds1-1 ... 1.3.5+ds1-1 (50 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
runc1.1.10+ds1-1 ... 1.4.3+ds1-1 (26 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
runc1.1.15+ds1-2 ... 1.4.3+ds1-1 (12 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
runc1.1.15+ds1-2 ... 1.3.3+ds1-1 (7 versions)
  • every version up to 1.3.3+ds1-2: fixed in 1.3.3+ds1-2
—

Weakness Classification(2)

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

Additional Vendor Advisories

(24)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 9× in last 7d / 34× 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 175 total refreshes for this CVE.

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

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCjq6l43d1/proxmox-lxc-docker-fix
    First seen Nov 11, 2025

    Workaround for CVE-2025-52881: Fixes Docker/Podman breakage in Proxmox LXC containers caused by AppArmor incompatibility with runc 1.2.7+. Universal wrapper for community-scripts with automatic AppArmor configuration.

    Open source ↗

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2025-52881?
CVE-2025-52881 is a high vulnerability published on November 6, 2025. runc is a CLI tool for spawning and running containers according to the OCI specification. In versions 1.2.7, 1.3.2 and 1.4.0-rc.2, an attacker can trick runc into misdirecting writes to /proc to other procfs files through the use of a racing container with shared mounts (we have also verified this…
When was CVE-2025-52881 disclosed?
CVE-2025-52881 was first published on November 6, 2025, 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-2025-52881 actively exploited?
CVE-2025-52881 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (45th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2025-52881?
CVE-2025-52881 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2025-52881?
A fix for CVE-2025-52881 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2025-52881 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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