The compat_alloc_user_space functions in include/asm/compat.h files in the Linux kernel before 2.6.36-rc4-git2 on 64-bit platforms do not properly allocate the userspace memory required for the 32-bit compatibility layer, which allows local users to gain privileges by leveraging the ability of the compat_mc_getsockopt function (aka the MCAST_MSFILTER getsockopt support) to control a certain length value, related to a "stack pointer underflow" issue, as exploited in the wild in September 2010.
CVE-2010-3081
Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2022-05-13. NVD baseline CVSS 7.8; sources differ by 0.0.
- Public exploit code is available (Exploit-DB (verified), public exploit)
A fix is available — apply it.
- CVSS v3
- 7.8
- EG Score
- 7.8HIGHmedium confidence
- EG Risk
- 66EG Risk 66/100CISA 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 computedSeverity78% × 45%Exploitation65% × 40%Automatability30% × 15%CISA SSVC: Track at low or medium mission impact; Track* or Attend at high (mission-essential systems).Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high. - EPSS PROB
- 3.5%
- EPSS %ILE
- 88th
- KEV
- Not listed
CISA SSVCTrack at low or medium mission impact; Track* or Attend at high (mission-essential systems).
A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
Exploitation public PoC (EG-KEV: weaponized) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). 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
September 24, 2010
Last Modified
April 29, 2026
Advisory Details (3)
Auto-updated May 2, 2026'[oss-security] CVE-2010-3081 kernel: 64-bit Compatibility Mode Stack Pointer Underflow' - MARC
http://marc.info/?l=oss-security&m=128461522230211&w=2CVE-2010-3081 kernel: 64-bit Compatibility Mode Stack Pointer Underflow
http://isc.sans.edu/diary.html?storyid=9574Vendor Advisories for CVE-2010-3081(8)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2010:0882Red Hat Product SecurityHigh
Red Hat Security Advisory: kernel security and bug fix update
- RHSA-2010:0842Red Hat Product SecurityHigh
Red Hat Security Advisory: kernel security and bug fix update
- RHSA-2010:0758Red Hat Product SecurityHigh
Red Hat Security Advisory: kernel-rt security and bug fix update
- RHSA-2010:0719Red Hat Product SecurityHigh
Red Hat Security Advisory: kernel security update
- RHSA-2010:0718Red Hat Product SecurityHigh
Red Hat Security Advisory: kernel security update
- RHSA-2010:0711Red Hat Product SecurityHigh
Red Hat Security Advisory: kernel security update
- RHSA-2010:0705Red Hat Product SecurityHigh
Red Hat Security Advisory: kernel security update
- RHSA-2010:0704Red Hat Product SecurityHigh
Red Hat Security Advisory: kernel security update
Patch Availability(12)
| Vendor / Ecosystem | Fix (by version range) / Patch | Released | Source |
|---|---|---|---|
| ubuntu | linux-image-2.6.35-903-omap4 (2.6.35-903.22) @ maverick | 2026-05-29 | ubuntu |
| ubuntu | linux-image-2.6.32-24-versatile-dbgsym (2.6.32-24.43) @ lucid | 2026-05-29 | ubuntu |
| ubuntu | linux-image-2.6.31-608-imx51 (2.6.31-608.22) @ lucid | 2026-05-29 | ubuntu |
| ubuntu | linux-image-2.6.31-112-imx51 (2.6.31-112.30) @ karmic | 2026-05-29 | ubuntu |
| redhat | kernel-0:2.4.21-66.EL | 2010-11-12 | redhat |
| redhat | kernel-0:2.6.32-71.7.1.el6 | 2010-11-10 | redhat |
| redhat | kernel-rt-0:2.6.24.7-169.el5rt | 2010-10-08 | redhat |
| redhat | kernel-0:2.6.9-78.0.33.EL | 2010-09-28 | redhat |
| redhat | kernel-0:2.6.9-89.29.1.EL | 2010-09-28 | redhat |
| redhat | kernel-0:2.6.18-128.23.2.el5 | 2010-09-22 | redhat |
| redhat | kernel-0:2.6.18-194.11.4.el5 | 2010-09-21 | redhat |
| redhat | kernel-0:2.6.18-164.25.2.el5 | 2010-09-21 | redhat |
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
(1 across 1 ecosystem)
Debian:5.0(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| linux-2.6 | 2.6.26-13 ... 2.6.26-25 (35 versions) |
| — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(4)
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 6× in last 7d / 15× 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 136 total refreshes for this CVE.
- 2026-10-09 20:00 UTCEPSS rescore
- 2026-10-08 16:33 UTCEPSS rescore
- 2026-10-07 23:38 UTCEPSS rescore
- 2026-10-06 15:09 UTCEPSS rescore
- 2026-10-05 17:37 UTCEPSS rescore
- 2026-10-03 14:20 UTCEPSS rescore
- 2026-09-30 14:58 UTCEPSS rescore
- 2026-09-29 08:08 UTCEG score recompute
- 2026-09-27 13:39 UTCEPSS rescore
- 2026-09-26 15:52 UTCEPSS rescore
- 2026-09-24 13:57 UTCEPSS rescore
- 2026-09-20 20:08 UTCEPSS rescore
- 2026-09-16 13:58 UTCEPSS rescore
- 2026-09-15 03:04 UTCEPSS rescore
- 2026-09-12 14:54 UTCEPSS rescore
- 2026-09-10 09:24 UTCEPSS rescore
- 2026-09-07 15:55 UTCEPSS rescore
- 2026-09-06 13:41 UTCEPSS rescore
- 2026-09-05 15:22 UTCEPSS rescore
- 2026-09-04 13:55 UTCEPSS rescore
- 2026-08-28 21:34 UTCEPSS rescore
- 2026-08-26 14:40 UTCEPSS rescore
- 2026-08-25 13:43 UTCEPSS rescore
- 2026-08-19 16:58 UTCEPSS rescore
- 2026-08-18 13:42 UTCEPSS rescore
Show 75 moreShow fewer
- 2026-08-16 02:09 UTCEPSS rescore
- 2026-08-15 01:25 UTCEPSS rescore
- 2026-08-09 13:41 UTCEPSS rescore
- 2026-08-07 16:21 UTCEPSS rescore
- 2026-08-06 13:41 UTCEPSS rescore
- 2026-08-05 19:11 UTCEPSS rescore
- 2026-08-04 15:04 UTCEPSS rescore
- 2026-08-01 04:10 UTCEPSS rescore
- 2026-07-30 01:26 UTCEPSS rescore
- 2026-07-25 14:12 UTCEPSS rescore
- 2026-07-23 14:14 UTCEPSS rescore
- 2026-07-23 01:03 UTCEG score recompute
- 2026-07-23 00:39 UTCEG score recompute
- 2026-07-23 00:06 UTCEG score recompute
- 2026-07-22 21:45 UTCEG score recompute
- 2026-07-22 14:03 UTCEPSS rescore
- 2026-07-22 14:03 UTCEPSS rescore
- 2026-07-21 15:20 UTCEPSS rescore
- 2026-07-20 17:03 UTCEPSS rescore
- 2026-07-19 02:25 UTCEPSS rescore
- 2026-07-18 10:00 UTCEPSS rescore
- 2026-07-16 16:58 UTCEPSS rescore
- 2026-07-15 16:54 UTCEPSS rescore
- 2026-07-15 16:54 UTCEPSS rescore
- 2026-07-15 01:55 UTCEPSS rescore
- 2026-07-13 22:25 UTCEPSS rescore
- 2026-07-13 06:08 UTCEPSS rescore
- 2026-07-11 08:22 UTCEPSS rescore
- 2026-07-08 15:10 UTCEPSS rescore
- 2026-07-08 15:10 UTCEPSS rescore
- 2026-07-06 02:19 UTCEPSS rescore
- 2026-07-06 02:19 UTCEPSS rescore
- 2026-07-05 02:26 UTCEPSS rescore
- 2026-07-02 14:01 UTCEPSS rescore
- 2026-07-01 15:02 UTCEPSS rescore
- 2026-06-30 23:19 UTCEPSS rescore
- 2026-06-29 14:02 UTCEPSS rescore
- 2026-06-29 14:02 UTCEPSS rescore
- 2026-06-28 14:03 UTCEPSS rescore
- 2026-06-28 04:52 UTCEPSS rescore
- 2026-06-28 04:52 UTCEPSS rescore
- 2026-06-27 03:05 UTCEPSS rescore
- 2026-06-25 13:46 UTCEPSS rescore
- 2026-06-24 14:02 UTCEPSS rescore
- 2026-06-24 14:02 UTCEPSS rescore
- 2026-06-23 21:30 UTCEPSS rescore
- 2026-06-23 21:29 UTCEPSS rescore
- 2026-06-22 14:22 UTCEPSS rescore
- 2026-06-22 14:22 UTCEPSS rescore
- 2026-06-21 14:53 UTCEPSS rescore
- 2026-06-21 01:56 UTCEPSS rescore
- 2026-06-21 01:56 UTCEPSS rescore
- 2026-06-19 19:22 UTCEPSS rescore
- 2026-06-19 19:22 UTCEPSS rescore
- 2026-06-18 17:49 UTCEPSS rescore
- 2026-06-18 17:49 UTCEPSS rescore
- 2026-06-17 17:49 UTCEPSS rescore
- 2026-06-17 17:49 UTCEPSS rescore
- 2026-06-16 17:49 UTCEPSS rescore
- 2026-06-15 17:44 UTCEPSS rescore
- 2026-06-13 22:57 UTCEPSS rescore
- 2026-06-13 22:57 UTCEPSS rescore
- 2026-06-13 22:57 UTCEPSS rescore
- 2026-06-12 23:08 UTCEPSS rescore
- 2026-06-12 23:08 UTCEPSS rescore
- 2026-06-11 13:56 UTCEPSS rescore
- 2026-06-10 22:14 UTCEPSS rescore
- 2026-06-10 13:17 UTCEPSS rescore
- 2026-06-08 14:13 UTCEPSS rescore
- 2026-06-07 15:22 UTCEPSS rescore
- 2026-06-07 15:22 UTCEPSS rescore
- 2026-06-06 13:44 UTCEPSS rescore
- 2026-06-06 13:44 UTCEPSS rescore
- 2026-06-05 22:44 UTCEPSS rescore
- 2026-06-05 22:44 UTCEPSS rescore
Publicly available exploits
(1 reference)Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Exploit-DBEDB-15024✓ verifiedFirst seen Sep 16, 2010
Linux Kernel 2.6.27 < 2.6.36 (RedHat x86-64) - 'compat' Local Privilege Escalation
Open source ↗
Related CVEs(same product + same vendor + same CWE)
Same product
10 shownDebian:5.0:linux-2.6
Same vendor
10 shownredhat:RHSA-2010:0842 · ubuntu:USN-1074-1
Frequently asked(5)
What is CVE-2010-3081?
When was CVE-2010-3081 disclosed?
Is CVE-2010-3081 actively exploited?
What is the CVSS score of CVE-2010-3081?
How do I remediate CVE-2010-3081?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2010-3081
Is Your Infrastructure Affected by CVE-2010-3081?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.