What is the CVSS score of CVE-2012-4929?

CVE-2012-4929 has a CVSS 2.0 base score of 2.6 (Low). CVSS vector: AV:N/AC:H/Au:N/C:P/I:N/A:N. EPSS exploitation probability: 13.9%.

Is there a public PoC exploit available for CVE-2012-4929?

Yes, a public proof-of-concept exploit is available for CVE-2012-4929. Prioritise patching immediately. EPSS: 13.9%.

Firefox CVE-2012-4929

LOW

Cryptographic Issues (CWE-310)

2012-09-15 cve@mitre.org

Information Disclosure Chrome Google Debian Mozilla Debian Linux Firefox

2.6

CVSS 2.0 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-310 OWASP Top 10:2025 A04:2025 - Cryptographic Failures ASVS 5.0 V11 - Cryptography Cryptographic controls
Impact	CVSS score of 2.6 (LOW). Attack characteristics: network attack vector, high complexity. Public proof-of-concept exploit code is available. EPSS exploitation probability: 13.87%.
Exploit ScenarioDerived	This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the low-severity affected system.

Monitor Track and reassess. Why: LOW severity (CVSS 0.1-3.9).

No patch listed yet 13.9% exploitation probability (EPSS)

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AnalysisAI

The TLS protocol 1.2 and earlier, as used in Mozilla Firefox, Google Chrome, Qt, and other products, can encrypt compressed data without properly obfuscating the length of the unencrypted data, which. Rated low severity (CVSS 2.6), this vulnerability is remotely exploitable. Public exploit code available and EPSS exploitation probability 13.9%.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

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Technical ContextAI · show details

This vulnerability is classified under CWE-310. The TLS protocol 1.2 and earlier, as used in Mozilla Firefox, Google Chrome, Qt, and other products, can encrypt compressed data without properly obfuscating the length of the unencrypted data, which allows man-in-the-middle attackers to obtain plaintext HTTP headers by observing length differences during a series of guesses in which a string in an HTTP request potentially matches an unknown string in an HTTP header, aka a "CRIME" attack. Affected products include: Debian Debian Linux, Google Chrome, Mozilla Firefox.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 2.6 LOW

AV:N/AC:H/Au:N/C:P/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

High

Confidentiality

Integrity

None

Availability

None

DescriptionCVE.org

The TLS protocol 1.2 and earlier, as used in Mozilla Firefox, Google Chrome, Qt, and other products, can encrypt compressed data without properly obfuscating the length of the unencrypted data, which allows man-in-the-middle attackers to obtain plaintext HTTP headers by observing length differences during a series of guesses in which a string in an HTTP request potentially matches an unknown string in an HTTP header, aka a "CRIME" attack.

Threat Intelligence Overview

EPSS Score

13.9%

Top 6% exploitable

Exploit

POC

Public exploit code exists

Data Quality

4 sources

Confidence: Medium

NVD

CVE.org

EPSS

GitHub

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity LOW

CISA KEV No

Public POC Yes

EPSS 13.9%

Patch available No

Active threat Yes

Deciding rule

LOW severity (CVSS 0.1-3.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

Poc

System Exposure· derived

Open

Automatable· derived

Human Impact· derived

Low

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +14

CVSS: +13

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.