CVE-2012-3137

MEDIUMCVSS v2 · 6.46.4—
EchelonGraph scoreLOW confidence

This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 6.4 — v2 rates that MEDIUM (v2 bands: LOW 0.0–3.9 / MEDIUM 4.0–6.9 / HIGH 7.0–10.0; v2 has no CRITICAL band). Vector AV:N/AC:L/Au:N/C:P/I:P/A:N. 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 31.4% 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
Elevated
6.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 31%CVSS v2: 6.4Exploit: Elevated riskExposed: 0

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

The authentication protocol in Oracle Database Server 10.2.0.3, 10.2.0.4, 10.2.0.5, 11.1.0.7, 11.2.0.2, and 11.2.0.3 allows remote attackers to obtain the session key and salt for arbitrary users, which leaks information about the cryptographic hash and makes it easier to conduct brute force password guessing attacks, aka "stealth password cracking vulnerability."

CVSS v2.0 (legacy)
6.4MEDIUMNVD never assigned a CVSS v3 rating to this CVE
EG Score
6.4(low)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity64% × 45%
Exploitation40% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
31%
EPSS %ILE
98%
KEV
Not listed

Published

September 21, 2012

Last Modified

April 29, 2026

References (16)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 26× 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. 2026-07-26 13:46 UTCEG score recompute▲ 6.40
  2. 2026-07-25 14:12 UTCEPSS rescore
  3. 2026-07-23 14:14 UTCEPSS rescore
  4. 2026-07-23 01:07 UTCEG score recompute▼ 0.20
  5. 2026-07-23 00:11 UTCEG score recompute▲ 0.20
  6. 2026-07-22 21:49 UTCEG score recompute
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  45. 2026-05-29 02:36 UTCEG score recompute
  46. 2026-05-29 02:36 UTCGHSA enrichment
  47. 2026-05-28 13:42 UTCEPSS rescore
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  49. 2026-05-27 13:38 UTCEPSS rescore
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Publicly available exploits

(3 references)

Working exploit code is in the public domain (2 GitHub PoCs) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCr1-/cve-2012-3137
    First seen Jun 18, 2014

    Exploit for cve-2012-3137 Oracle challenge

    Open source ↗
  • GitHub PoChantwister/o5logon-fetch
    First seen Mar 29, 2014

    Attempts to exploit CVE-2012-3137 on vulnerable Oracle servers

    Open source ↗
  • Exploit-DBEDB-22069
    First seen Oct 18, 2012

    Oracle Database - Protocol Authentication Bypass

    Open source ↗

Related CVEs(same CWE)

Frequently asked(4)

What is CVE-2012-3137?
CVE-2012-3137 is a medium vulnerability published on September 21, 2012. The authentication protocol in Oracle Database Server 10.2.0.3, 10.2.0.4, 10.2.0.5, 11.1.0.7, 11.2.0.2, and 11.2.0.3 allows remote attackers to obtain the session key and salt for arbitrary users, which leaks information about the cryptographic hash and makes it easier to conduct brute force…
When was CVE-2012-3137 disclosed?
CVE-2012-3137 was first published in the National Vulnerability Database on September 21, 2012, 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-2012-3137 actively exploited?
CVE-2012-3137 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 31% probability of exploitation in the next 30 days, which ranks it in the top 1.9% of all scored CVEs.
How do I remediate CVE-2012-3137?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2012-3137, 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.

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