NULL pointer dereference in Mozilla Firefox
CVE-2023-29539
When handling the filename directive in the Content-Disposition header, the filename would be truncated if the filename contained a NULL character. This could have led to reflected file download attacks potentially tricking users to instal…
EPSS: 0.007 (50.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Mozilla Firefox — versions unspecified
- Mozilla Firefox Esr — versions unspecified
- Mozilla Firefox_esr
- Mozilla Firefox For Android — versions unspecified
- Mozilla Focus
- Mozilla Focus For Android — versions unspecified
- Mozilla Thunderbird — versions unspecified
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@mozilla.org (Vendor Advisory)
- security@mozilla.org (Vendor Advisory)
- security@mozilla.org (Vendor Advisory)
- security@mozilla.org (Issue Tracking)
Frequently asked questions
- What is CVE-2023-29539?
- CVE-2023-29539 is a high-severity vulnerability in Mozilla Firefox, classified under NULL Pointer Dereference. CVSS score: 8.8/10. Published 2023-06-02.
- How severe is CVE-2023-29539?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2023-29539 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.