CVE-2025-49823
CVE-2025-49823 is a none-severity vulnerability with a CVSS 3.x base score of 0.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-77.
Key facts
- Severity: None (CVSS 3.x base score 0.0)
- EPSS exploit prediction: 0% (4th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-18445
- Weakness: CWE-77
- Published:
- Last modified:
Description
(conda) Constructor is a tool which allows constructing an installer for a collection of conda packages. Prior to version 3.11.3, shell installer scripts process the installation prefix (user_prefix) using an eval statement, which executes unsanitized user input as shell code. Although the script runs with user privileges (not root), an attacker could exploit this by injecting arbitrary commands through a malicious path during installation. Exploitation requires explicit user action. This issue has been patched in version 3.11.3.
Frequently asked questions
- What is CVE-2025-49823?
- (conda) Constructor is a tool which allows constructing an installer for a collection of conda packages. Prior to version 3.11.3, shell installer scripts process the installation prefix (user_prefix) using an eval statement, which executes unsanitized user input as shell code. Although the script runs with user privileges (not root), an attacker could exploit this by injecting arbitrary commands through a malicious path during installation. Exploitation requires explicit user action. This issue has been patched in version 3.11.3.
- How severe is CVE-2025-49823?
- CVE-2025-49823 has a CVSS 3.x base score of 0.0, rated none severity. It is exploitable over physical access with high attack complexity, requires high privileges and user interaction. Impact on confidentiality is none, integrity none, and availability none.
- Is CVE-2025-49823 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2025-49823?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2025-49823 have an EU (EUVD) identifier?
- Yes. CVE-2025-49823 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-18445.
- When was CVE-2025-49823 published?
- CVE-2025-49823 was published on 2025-06-17 and last updated on 2026-06-17.
References
- https://github.com/conda/constructor/commit/ce4c2d58cfcde2f62d038fb8aba013176c77a0b1
- https://github.com/conda/constructor/security/advisories/GHSA-44q9-rg2q-5g99
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