CVE-2013-1763

HIGHCVSS v2 · 7.27.2—
EchelonGraph scoreLOW confidence

This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 7.2 — v2 rates that HIGH (v2 bands: LOW 0.0–3.9 / MEDIUM 4.0–6.9 / HIGH 7.0–10.0; v2 has no CRITICAL band). Vector AV:L/AC:L/Au:N/C:C/I:C/A:C. CVSS v2 is an older, coarser metric than v3.1/v4.0 (no Scope, no User Interaction, no Attack Requirements), so it is not directly comparable to a v3 or v4 score. NVD has never re-scored this record under v3. EPSS predicts 4.2% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.

Sources: epss, nvd_v2
Weaponized
7.2EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • Public exploit code is available (Exploit-DB (verified), public exploit)
CISA-KEV: Not listedEPSS PROB: 4.2%CVSS v2: 7.2Exploit: Exploit-DB (verified) · public exploitExposed services: Not assessed

A fix is available — apply it.

Array index error in the __sock_diag_rcv_msg function in net/core/sock_diag.c in the Linux kernel before 3.7.10 allows local users to gain privileges via a large family value in a Netlink message.

CVSS v2.0 (legacy)
7.2HIGHNVD never assigned a CVSS v3 rating to this CVE
EG Score
7.2HIGHlow confidence
EG Risk
63
EG Risk 63/100CISA 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
Severity72% × 45%
Exploitation65% × 40%
Automatability30% × 15%
CISA SSVC: Track at low, Track or Track* at medium and Track* or Attend at high mission impact.
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
4.2%
EPSS %ILE
90th
KEV
Not listed

CISA SSVCTrack at low, Track or Track* at medium and Track* or Attend at high mission impact.

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 unknown (not published for this CVE). 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

February 28, 2013

Last Modified

April 29, 2026

References (28)

Patch Availability(4)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulinux-image-3.5.0-25-generic (3.5.0-25.39~precise1) @ precise2026-05-29ubuntu
ubuntulinux-image-3.5.0-25-powerpc64-smp (3.5.0-25.39) @ quantal2026-05-29ubuntu
ubuntulinux-image-3.5.0-220-omap4 (3.5.0-220.29) @ quantal2026-05-29ubuntu
redhatkernel-rt-0:3.6.11-rt30.25.el6rt2013-03-11redhat

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.

Weakness Classification(1)

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

All Vendor Advisories

(4)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 4× in last 7d / 14× 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 133 total refreshes for this CVE.

  1. 2026-10-05 17:38 UTCEPSS rescore
  2. 2026-10-04 23:16 UTCEPSS rescore
  3. 2026-09-30 14:58 UTCEPSS rescore
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  1. 2026-08-18 13:42 UTCEPSS rescore
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  14. 2026-07-26 13:47 UTCEG score recompute▲ 7.20
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  17. 2026-07-23 01:09 UTCEG score recompute
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  19. 2026-07-22 21:51 UTCEG score recompute
  20. 2026-07-22 14:04 UTCEPSS rescore
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  73. 2026-06-07 15:22 UTCEPSS rescore
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Publicly available exploits

(4 references)

Working exploit code is in the public domain (4 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-33336✓ verified
    First seen Feb 24, 2013

    Linux Kernel 3.3 < 3.8 (Ubuntu / Fedora 18) - 'sock_diag_handlers()' Local Privilege Escalation (3)

    Open source ↗
  • Exploit-DBEDB-44299
    First seen Aug 26, 2015

    Linux Kernel < 3.5.0-23 (Ubuntu 12.04.2 x64) - 'SOCK_DIAG' SMEP Bypass Local Privilege Escalation

    Open source ↗
  • Exploit-DBEDB-24746
    First seen Mar 13, 2013

    Linux Kernel 3.7.10 (Ubuntu 12.10 x64) - 'sock_diag_handlers' Local Privilege Escalation (2)

    Open source ↗
  • Exploit-DBEDB-24555
    First seen Feb 27, 2013

    Linux Kernel 3.3.x < 3.7.x (Arch Linux x86-64) - 'sock_diag_handlers[]' Local Privilege Escalation (1)

    Open source ↗

Related CVEs(same vendor + same CWE)

Frequently asked(4)

What is CVE-2013-1763?
CVE-2013-1763 is a high vulnerability published on February 28, 2013. Array index error in the sockdiagrcvmsg function in net/core/sockdiag.c in the Linux kernel before 3.7.10 allows local users to gain privileges via a large family value in a Netlink message.
When was CVE-2013-1763 disclosed?
CVE-2013-1763 was first published on February 28, 2013, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2013-1763 actively exploited?
CVE-2013-1763 is not currently on CISA's Known Exploited Vulnerabilities catalog. EchelonGraph's EG-KEV model classifies it as weaponized: a functional public exploit exists. FIRST EPSS estimates a 4.2% probability of exploitation in the next 30 days (90th percentile of EPSS-scored CVEs).
How do I remediate CVE-2013-1763?
A fix for CVE-2013-1763 is available: update to the fixed version the vendor names in its advisory.

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