CVE-2025-2849
A vulnerability, which was classified as problematic, was found in UPX up to 5.0.0.
Does this matter?
Lower severity and a low EPSS score (0.30%). Track it; it rarely justifies an emergency change on its own.
Description
A vulnerability, which was classified as problematic, was found in UPX up to 5.0.0. Affected is the function PackLinuxElf64::un_DT_INIT of the file src/p_lx_elf.cpp. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used. The patch is identified as e0b6ff192412f5bb5364c1948f4f6b27a0cd5ea2. It is recommended to apply a patch to fix this issue.
- CVSS 4.0
- 4.8 MEDIUMCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.30% probability · 23th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-119, CWE-122, CWE-787
- Affected
- upx/upx
- Source
- cna@vuldb.com
EPSS 0.3% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/upx/upx/commit/e0b6ff192412f5bb5364c1948f4f6b27a0cd5ea2Patch
- https://github.com/upx/upx/issues/898Exploit, Issue Tracking
- https://github.com/upx/upx/issues/898#issuecomment-2734082143Exploit, Issue Tracking
- https://github.com/user-attachments/files/19307868/input.zipProduct
- https://vuldb.com/?ctiid.301494Permissions Required, VDB Entry
- https://vuldb.com/?id.301494Third Party Advisory, VDB Entry
- https://vuldb.com/?submit.522371Third Party Advisory, VDB Entry
- https://github.com/upx/upx/issues/898#issuecomment-2734082143Exploit, Issue Tracking
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.