CVE-2021-32825
LOWDescription
bblfshd is an open source self-hosted server for source code parsing. In bblfshd before commit 4265465b9b6fb5663c30ee43806126012066aad4 there is a "zipslip" vulnerability. The unsafe handling of symbolic links in an unpacking routine may enable attackers to read and/or write to arbitrary locations outside the designated target folder. This issue may lead to arbitrary file write (with same permissions as the program running the unpack operation) if the attacker can control the archive file. Additionally, if the attacker has read access to the unpacked files, he may be able to read arbitrary system files the parent process has permissions to read. For more details including a PoC see the referenced GHSL-2020-258.
How to fix
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
Impact
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N
Exploit Intelligence
Moderate risk: more likely to be exploited than 56% of all known CVEs.
References
Related Vulnerabilities
Other CWE-23 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2024-27199 | High | 7.3 | 100% | KEV + Ransom | Fix |
| CVE-2020-5410 | High | 7.5 | 96% | KEV | Fix |
| CVE-2021-40870 | Critical | 9.8 | 92% | KEV | Fix |
| CVE-2025-64446 | Critical | 9.8 | 89% | KEV | Fix |
| CVE-2020-5405 | Medium | 6.5 | 69% | - | Fix |
| CVE-2025-55752 | High | 7.5 | 67% | - | Fix |
Embed a live status badge for CVE-2021-32825
Markdown
[](https://tridentstack.com/cve/CVE-2021-32825)HTML
<a href="https://tridentstack.com/cve/CVE-2021-32825"><img src="https://tridentstack.com/cve/badge/CVE-2021-32825.svg" alt="CVE-2021-32825"></a>Find and fix vulnerabilities across your fleet
TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.
Start freeThis 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 2024-11-21.