CVE-2026-58058

A flaw was found in Nmap. A remote attacker or a scanned target can send a specially crafted IPv6 response with a truncated extension header. This can lead to an integer underflow, causing out-of-bounds reads and a denial of service DoS due to a crash during raw IPv6 scans. Mitigation Mitigation...

gnutls: GnuTLS: Denial of Service via DTLS zero-length fragment

A flaw in GnuTLS DTLS handshake parsing allows malformed fragments with zero length and non-zero offset, leading to an integer underflow during reassembly and resulting in an out-of-bounds read. This issue is remotely exploitable and may cause information disclosure or denial of service...

Nmap - Integer Underflow in IPv6 Extension Header Parsing

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CVE-2026-58058 Nmap - Integer Underflow in IPv6 Extension Header Parsing

Nmap through 7.99 does not keep the IPv6 extension-header walk within the captured packet in ipv6getdataprimitive libnetutil/netutil.cc, so the pointer advances past the buffer and the remaining-length computation underflows to a large value. A scanned target or on-path attacker returning a craft...

CVE-2026-58058

CVE-2026-58058 : Nmap up to 7.99 is affected by an integer underflow in IPv6 extension-header parsing (ipv6_get_data_primitive in libnetutil/netutil.cc). A crafted or truncated IPv6 extension header returned by a scanned target or on-path attacker can cause the remaining-length to underflow to a ...

CVE-2026-58058 Nmap - Integer Underflow in IPv6 Extension Header Parsing

Nmap through 7.99 does not keep the IPv6 extension-header walk within the captured packet in ipv6getdataprimitive libnetutil/netutil.cc, so the pointer advances past the buffer and the remaining-length computation underflows to a large value. A scanned target or on-path attacker returning a craft...

CVE-2026-58058 Nmap - Integer Underflow in IPv6 Extension Header Parsing

Nmap through 7.99 does not keep the IPv6 extension-header walk within the captured packet in ipv6getdataprimitive libnetutil/netutil.cc, so the pointer advances past the buffer and the remaining-length computation underflows to a large value. A scanned target or on-path attacker returning a craft...

DEBIAN-CVE-2026-6678

Integer underflow in wcPKCS7DecryptOri when handling crafted Other Recipient Info, leading to incorrect length handling during decryption...

CVE-2026-6678

Integer underflow in wcPKCS7DecryptOri when handling crafted Other Recipient Info, leading to incorrect length handling during decryption...

UBUNTU-CVE-2026-6678

Integer underflow in wcPKCS7DecryptOri when handling crafted Other Recipient Info, leading to incorrect length handling during decryption...

CVE-2026-6678

Integer underflow in wcPKCS7DecryptOri when handling crafted Other Recipient Info, leading to incorrect length handling during decryption...

CVE-2026-6678

Integer underflow in wcPKCS7DecryptOri when handling crafted Other Recipient Info, leading to incorrect length handling during decryption...

CVE-2026-6678 Integer underflow in wc_PKCS7_DecryptOri handling crafted Other Recipient Info

Integer underflow in wcPKCS7DecryptOri when handling crafted Other Recipient Info, leading to incorrect length handling during decryption...

CVE-2026-6678

CVE-2026-6678 affects wolfSSL’s wc_PKCS7_DecryptOri function. A crafted Other Recipient Info triggers an integer underflow, causing incorrect length handling during decryption. Impact is described as decryption length mismanagement; no explicit exploitation details are provided in the connected d...

EUVD-2026-39558

Integer underflow in wcPKCS7DecryptOri when handling crafted Other Recipient Info, leading to incorrect length handling during decryption...

CVE-2026-6678

Integer underflow in wcPKCS7DecryptOri when handling crafted Other Recipient Info, leading to incorrect length handling during decryption...

CVE-2026-6678

Integer underflow in wcPKCS7DecryptOri when handling crafted Other Recipient Info, leading to incorrect length handling during decryption...

gnutls: GnuTLS: Denial of Service via DTLS zero-length fragment

A flaw in GnuTLS DTLS handshake parsing allows malformed fragments with zero length and non-zero offset, leading to an integer underflow during reassembly and resulting in an out-of-bounds read. This issue is remotely exploitable and may cause information disclosure or denial of service...

SUSE CVE-2026-9539

An out-of-bounds heap read and integer underflow in the TCP urgent data handling sosendoob in freedesktop.org libslirp version before v4.9.2 on hypervisor host environments e.g., QEMU allows a privileged guest VM attacker root or CAPNETRAW to leak gigabytes of sensitive host-process heap memory v...

PT-2026-52586

Name of the Vulnerable Software and Affected Versions The product name cannot be determined affected versions not specified Description An integer underflow occurs in the wc PKCS7 DecryptOri function when processing specially crafted Other Recipient Info. This leads to incorrect length handling...