CVE-2026-5260High· 8.2▾ TwilightA flaw was found in libgnutls. A remote attacker, by sending an extremely short premaster secret during an RSA key exchange to a server using an RSA key backed by a PKCS#11 token, could trigger a short heap overread. This memory corrupti…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 45.1 · likelihood 0.2 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Jul 31.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.7%
0.7% → 0.9%
Last analysed / modified upstream
A flaw was found in libgnutls. A remote attacker, by sending an extremely short premaster secret during an RSA key exchange to a server using an RSA key backed by a PKCS#11 token, could trigger a short heap overread. This memory corruption vulnerability could lead to information disclosure.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-42014Medium· 6.6A flaw was found in GnuTLS
CVE-2026-5419Low· 3.7A flaw was found in gnutls
CVE-2026-42015Medium· 5.3A flaw was found in gnutls
CVE-2026-42013High· 8.2A flaw was found in gnutls
CVE-2026-3832Low· 3.7A flaw was found in gnutls
CVE-2026-42012High· 7.1A flaw was found in gnutls