VulnerabilityPublished 26 Nov 2024Updated 4 Nov 2025

CVE-2024-11696: The application failed to account for exceptions thrown by the loadManifestFromFile method during

Source GCVE Database

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Authoritative record:CVE-2024-11696· Medium 5.4

Not known to be exploited · CVSS 5.4 Medium · fixed in 133 : update affected systems when convenient.

Data as of 30 Oct 2026, 15:53 UTC

CVSS 3.1 base score

5.4Medium

How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none

CVSS scores by source
CISA-ADP	CVSS 3.1	5.4

Patch: Available – fixed in 133, 128.5

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: Required
Scope: Unchanged
Confidentiality: Low
Integrity: Low
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: Required: Successful exploitation of this vulnerability requires a user to take some action before the vulnerability can be exploited.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the impacted component.
Integrity: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact on the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 26 Nov 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

ghsa-g5wv-cvf4-2r98

What to do

AI-suggested

This vulnerability has been fixed in Firefox 133, Firefox ESR 128.5, Thunderbird 133, and Thunderbird ESR 128.5. Users and administrators should update to these versions or later to ensure protection against this issue. No additional mitigation actions are required beyond applying the official updates.

Description

CVE-2024-11696 is a vulnerability in Firefox and Thunderbird where exceptions thrown by the loadManifestFromFile method during add-on signature verification were not properly handled. This flaw could cause runtime errors that disrupt signature validation, potentially allowing bypass of signature enforcement for unrelated add-ons. Signature validation is intended to prevent tampering with extensions by third-party applications. The issue affects Firefox versions prior to 133 and Thunderbird versions prior to 133, including Firefox ESR versions prior to 128.5 and Thunderbird ESR versions prior to 128.5. The vulnerability has a medium severity with a CVSS score of 5.4. Mozilla has fixed this issue in Firefox 133 and Thunderbird 133, as well as in Firefox ESR 128.5 and Thunderbird ESR 128.5.

Impact

The impact of this vulnerability is a potential bypass of add-on signature validation enforcement, which could allow tampered or malicious add-ons to be used without detection. This undermines the security model that protects users from unauthorized modifications to their extensions. The CVSS 3.1 score of 5.4 indicates a medium severity with limited confidentiality and integrity impact and no availability impact. There is no evidence of exploitation in the wild.

Summary

The vulnerability CVE-2024-11696 arises from the application's failure to handle exceptions thrown by the loadManifestFromFile method during the add-on signature verification process. When an invalid or unsupported extension manifest triggers these exceptions, runtime errors may occur that disrupt the signature validation process. This disruption can lead to bypassing the enforcement of signature validation for unrelated add-ons, undermining the security mechanism that ensures third-party applications have not tampered with user extensions. This issue affects Firefox versions before 133, Firefox ESR before 128.5, Thunderbird before 133, and Thunderbird ESR before 128.5. Mozilla has addressed this vulnerability in Firefox 133, Firefox ESR 128.5, Thunderbird 133, and Thunderbird ESR 128.5.

CWE-347Improper Verification of Cryptographic Signature (opens in a new tab)
Base weaknessOWASP Top 10 A04:2025: Cryptographic Failures (opens in a new tab)
The product does not verify, or incorrectly verifies, the cryptographic signature for data.
OWASP Cheat Sheets
XML Security (opens in a new tab)
REST Security (opens in a new tab)
JSON Web Token for Java (opens in a new tab)
REST Assessment (opens in a new tab)
Cross-Site Request Forgery Prevention (opens in a new tab)
OWASP ASVS 4.0.3
V13.3.2 (opens in a new tab)
V3.5.3 (opens in a new tab)
V13.2.6 (opens in a new tab)
Attack patterns
Padding Oracle Crypto Attack (opens in a new tab)
Signature Spoofing by Improper Validation (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

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Exploitation evidence

What to do

Description

AI analysisMachine-generated, updated 30 Oct 2026, 15:53 UTC

WeaknessesCWE-347

Technical details

References

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