CVE-2026-40499
OS command injection in radare2 PDB parser via crafted section names.
Is CVE-2026-40499 being exploited?
Not confirmed. CVE-2026-40499 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 1.2% probability of exploitation in the next 30 days.
How severe is CVE-2026-40499?
CVE-2026-40499 is rated High with a CVSS score of 8.4. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-40499?
Yes. A fix has been recorded for CVE-2026-40499. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-40499 affect?
CVE-2026-40499 affects radare2 <= 6.1.3. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-40499?
Upgrade to 6.1.4+; verify PDB sources and avoid untrusted PDBs.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote code execution via crafted PDB file; attacker can run arbitrary commands on vulnerable host when processing the file.
Patch when possible
- affected< 6.1.4
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.