#VU106024 Code Injection in asteval - CVE-2025-24359

Vulnerability identifier: #VU106024

Vulnerability risk: High

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2025-24359

CWE-ID: CWE-94

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
asteval
Universal components / Libraries / Libraries used by multiple products

Vendor: lmfit

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to improper input validation. A remote attacker can pass specially crafted input to the application and execute arbitrary Python code on the system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

asteval: 0.9 - 1.0.5

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External links
https://github.com/lmfit/asteval/blob/cfb57f0beebe0dc0520a1fbabc35e66060c7ea71/asteval/asteval.py#L507
https://github.com/lmfit/asteval/security/advisories/GHSA-3wwr-3g9f-9gc7
https://lucumr.pocoo.org/2016/12/29/careful-with-str-format

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.