erlang-otp: epmd: Erlang OTP epmd: Remote Denial of Service via connection exhaustion

A flaw was found in Erlang OTP's Erlang Port Mapper Daemon epmd. An unauthenticated remote attacker can exploit an improper handling of exceptional conditions in the doaccept function. By exhausting connection slots through holding numerous TCP connections open and periodically sending data, the...

megaco: Erlang/OTP Megaco Flex Scanner: Remote code execution or denial of service via oversized message

A flaw was found in the Erlang/OTP megaco flex scanner C driver. A remote, unauthenticated attacker can exploit a buffer overflow vulnerability by sending a specially crafted H.248/Megaco message with an oversized property parameter name. This can lead to memory corruption, potentially allowing f...

Linux Distros Unpatched Vulnerability : CVE-2026-54890

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Integer Underflow Wrap or Wraparound vulnerability in erlang otp erlang/otp erts modules, erlang otp erts erts modules allows Forced Integer Overflow, Excessive...

FreeBSD : Erlang/OTP -- denial of service in epmd (445e3324-89e1-11f1-b35c-4c526214c986)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 445e3324-89e1-11f1-b35c-4c526214c986 advisory. The Erlang/OTP team reports: Mitigated a denial of service attack in epmd. Tenable has extracted the...

FreeBSD : Erlang/OTP -- denial of service via exponential certificate policy tree growth (445d674f-89e1-11f1-b35c-4c526214c986)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 445d674f-89e1-11f1-b35c-4c526214c986 advisory. https://github.com/erlang/otp/security/advisories/GHSA-622p-qfh6-c352 reports: A remote attacker can...

FreeBSD : Erlang/OTP -- (D)TLS-1.2 server certificate verification bypass (445c61c0-89e1-11f1-b35c-4c526214c986)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 445c61c0-89e1-11f1-b35c-4c526214c986 advisory. https://github.com/erlang/otp/security/advisories/GHSA-c6cw-pr89-w882 reports: The OTP TLS/DTLS client...

AZL-95666 CVE-2026-59250 affecting package erlang 26.2.5.21-4

Classic buffer overflow in the Erlang/OTP megaco flex scanner C driver allows a remote unauthenticated attacker to corrupt the driver's memory and potentially achieve remote code execution or a denial-of-service crash by sending a single text-encoded H.248/Megaco message containing an oversized...

AZL-94202 CVE-2026-59251 affecting package erlang for versions less than 26.2.5.21-4

Allocation of resources without limits in Erlang/OTP publickey certificate path validation allows a remote unauthenticated attacker to cause denial of service by sending a crafted X.509 certificate chain during the TLS handshake. During RFC 5280 policy processing in publickey:pkixpathvalidation/3...

DEBIAN-CVE-2026-59251

Allocation of resources without limits in Erlang/OTP publickey certificate path validation allows a remote unauthenticated attacker to cause denial of service by sending a crafted X.509 certificate chain during the TLS handshake. During RFC 5280 policy processing in publickey:pkixpathvalidation/3...

AZL-94205 CVE-2026-58227 affecting package erlang for versions less than 26.2.5.21-4

The Erlang/OTP ssl application does not detect cycles when reconstructing an incomplete peer certificate chain during a TLS or DTLS handshake. In sslcertificate:handleincompletechain/5, the received chain is passed to sslcertificate:buildcertificatechain/5, which walks issuer relationships via...

AZL-94196 CVE-2026-55953 affecting package erlang for versions less than 26.2.5.21-4

The Erlang/OTP ssl TLS 1.2 and earlier and DTLS client does not verify that the cipher suite selected by the server in ServerHello was among the suites offered by the client in ClientHello. The client-side tlshandshake:hello/5 handler validates the negotiated protocol version and the downgrade...

AZL-94208 CVE-2026-55737 affecting package erlang for versions less than 26.2.5.21-4

Signed to Unsigned Conversion Error and Out-of-bounds Write vulnerability in Erlang OTP erts allows an attacker who can supply a crafted Erlang external term format ETF binary to binarytoterm/1 to corrupt the BEAM heap pointer and crash the virtual machine. When decoding a LARGETUPLEEXT term, the...

DEBIAN-CVE-2026-42792

Improper Handling of Exceptional Conditions vulnerability in Erlang OTP erts epmd allows an unauthenticated remote attacker to permanently terminate the Erlang Port Mapper Daemon epmd via connection slot exhaustion. The doaccept function in erts/epmd/src/epmdsrv.c calls epmdcleanupexit when accep...

AZL-94199 CVE-2026-42792 affecting package erlang for versions less than 26.2.5.21-4

Improper Handling of Exceptional Conditions vulnerability in Erlang OTP erts epmd allows an unauthenticated remote attacker to permanently terminate the Erlang Port Mapper Daemon epmd via connection slot exhaustion. The doaccept function in erts/epmd/src/epmdsrv.c calls epmdcleanupexit when accep...

CVE-2026-54890

CVE-2026-54890 describes an Integer Underflow in the BEAM VM’s ETF decoder: the BIT_BINARY_EXT (tag 77) handler accepts an encoding with length and trailing-bits both zero, causing the bitstring size calculation to underflow and produce a ~2^64 value, which is then used as a memory allocation siz...

CVE-2026-54890

Integer Underflow Wrap or Wraparound vulnerability in erlang otp erlang/otp erts modules, erlang otp erts erts modules allows Forced Integer Overflow, Excessive Allocation. This vulnerability is associated with program files erts/emulator/beam/external.c, emulator/beam/external.c. The BITBINARYEX...

CVE-2026-59251

Summary: CVE-2026-59251 is a denial-of-service in Erlang/OTP public_key certificate path validation caused by unbounded growth of the certificate policy tree during RFC 5280 policy processing. The vulnerability occurs when validating TLS certificates; a chain with many policies per certificate ca...

CVE-2026-59251 Denial of service via exponential certificate policy tree growth in path validation

Allocation of resources without limits in Erlang/OTP publickey certificate path validation allows a remote unauthenticated attacker to cause denial of service by sending a crafted X.509 certificate chain during the TLS handshake. During RFC 5280 policy processing in publickey:pkixpathvalidation/3...

EUVD-2026-49324

Classic buffer overflow in the Erlang/OTP megaco flex scanner C driver allows a remote unauthenticated attacker to corrupt the driver's memory and potentially achieve remote code execution or a denial-of-service crash by sending a single text-encoded H.248/Megaco message containing an oversized...

CVE-2026-55953

The Erlang/OTP ssl TLS 1.2 and earlier and DTLS client does not verify that the cipher suite selected by the server in ServerHello was among the suites offered by the client in ClientHello. The client-side tlshandshake:hello/5 handler validates the negotiated protocol version and the downgrade...