Is CVE-2025-2849 in the CISA KEV catalog?

No. CVE-2025-2849 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-2849?

CVE-2025-2849 has a CVSS v3 base score of 3.3 (LOW).

What is the EPSS score for CVE-2025-2849?

CVE-2025-2849 has an EPSS score of 0.27% (19th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-2849?

Upgrade upx-ucl on debian 13 to 4.2.4-1.1 or later.

CVE & CISA-KEV Catalog

CVE-2025-2849

LOW

3.3

CVSS v3

NVD

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.

CWE-119Buffer Overflow CWE-122Heap-based Buffer Overflow CWE-787Out-of-bounds Write

How to fix

Remediation Available

upx-uclDebian

Fixed in:4.2.4-1.1CVE-2025-2849

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityLow

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

Exploit Intelligence

0.27%probability of exploitation in 30 days

19thpercentile

Low risk: more likely to be exploited than 19% of all known CVEs.

References

Patch1

github.com

Exploit2

Third-Party Advisory2

VDB Entry1

vuldb.com

Product1

github.com

Related Vulnerabilities

Other CWE-119 (Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-4966	Critical	9.4	100%	KEV + Ransom	Fix
CVE-2017-11882	High	7.8	100%	KEV + Ransom	-
CVE-2020-0796	Critical	10.0	100%	KEV + Ransom	-
CVE-2008-4250	Critical	9.8	99%	KEV	-
CVE-2017-15944	Critical	9.8	98%	KEV	Fix
CVE-2015-0014	High	10.0	97%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-04-11.