CVE-2020-37239libbabl 0.1.62 Broken Double Free Detection Memory Safety
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It affects Gegl libbabl. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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libbabl 0.1.62 contains a broken double free detection vulnerability that allows attackers to bypass memory safety checks by exploiting signature overwriting in freed chunks. Attackers can call babl_free() twice on the same pointer without triggering detection, as libc's malloc metadata overwrites babl's signature field upon freeing, enabling potential memory corruption and code execution.
- CVSS
- 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-415
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- May 18, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Gegl libbabl gegl:libbabl (from the name) | 0.1.62 | CNA record |
References
- https://www.exploit-db.com/exploits/49259exploit
- https://www.gegl.orgproduct
- https://www.gegl.org/babl/product
- https://www.vulncheck.com/advisories/libbabl-broken-double-free-detection-memory-safetythird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.