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Integer-Underflow

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high advisory

CVE-2026-66032 - libssh2 SFTP Double-Free Vulnerability

A double-free vulnerability, CVE-2026-66032, in libssh2 versions through 1.11.1 allows a malicious SSH server to corrupt the heap of an authenticated client opening an SFTP session, potentially leading to arbitrary code execution.

libssh2 <= 1.11.1 ssh sftp double-free vulnerability libssh2 memory-corruption rce DoS +2
4t 4c
medium advisory

CVE-2026-43492 Integer Underflow in mpi_read_raw_from_sgl()

CVE-2026-43492 is an integer underflow vulnerability in the mpi_read_raw_from_sgl function within the lib/crypto component that could lead to unexpected behavior or denial-of-service.

integer underflow denial of service cryptographic library CVE-2026-43492
1r 1c
medium advisory

osrg GoBGP Integer Underflow Vulnerability

osrg GoBGP up to version 4.3.0 is vulnerable to an integer underflow in the parseRibEntry function, potentially allowing a remote attacker to cause a denial of service or other unspecified impacts; version 4.4.0 addresses this issue.

GoBGP cve vulnerability integer underflow bgp
2r 1t 1c
high advisory

CVE-2026-5778 Integer Underflow in ChaCha Decryption Leads to Out-of-Bounds Access

CVE-2026-5778 is an integer underflow vulnerability in the ChaCha decrypt path of an unspecified Microsoft product, leading to an out-of-bounds access issue.

integer-underflow memory-corruption cve
2r 1c
high advisory

strongSwan EAP-TTLS AVP Integer Underflow Vulnerability (CVE-2026-25075)

An integer underflow vulnerability in strongSwan's EAP-TTLS AVP parser allows unauthenticated remote attackers to cause a denial of service by sending crafted AVP data with invalid length fields during IKEv2 authentication, leading to excessive memory allocation or a NULL pointer dereference.

denial-of-service integer-underflow strongSwan CVE-2026-25075
2r 1t