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Vulnerability details: VCID-nsmv-hc2b-9bca
Vulnerability ID VCID-nsmv-hc2b-9bca
Aliases CVE-2025-26618
Summary Erlang is a programming language and runtime system for building massively scalable soft real-time systems with requirements on high availability. OTP is a set of Erlang libraries, which consists of the Erlang runtime system, a number of ready-to-use components mainly written in Erlang. Packet size is not verified properly for SFTP packets. As a result when multiple SSH packets (conforming to max SSH packet size) are received by ssh, they might be combined into an SFTP packet which will exceed the max allowed packet size and potentially cause large amount of memory to be allocated. Note that situation described above can only happen for successfully authenticated users after completing the SSH handshake. This issue has been patched in OTP versions 27.2.4, 26.2.5.9, and 25.3.2.18. There are no known workarounds for this vulnerability.
Status Published
Exploitability 0.5
Weighted Severity 6.3
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (1)
System Score Found at
cvssv3 6.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-26618.json
epss 0.00069 https://api.first.org/data/v1/epss?cve=CVE-2025-26618
epss 0.00087 https://api.first.org/data/v1/epss?cve=CVE-2025-26618
epss 0.00087 https://api.first.org/data/v1/epss?cve=CVE-2025-26618
epss 0.00087 https://api.first.org/data/v1/epss?cve=CVE-2025-26618
epss 0.00087 https://api.first.org/data/v1/epss?cve=CVE-2025-26618
epss 0.00087 https://api.first.org/data/v1/epss?cve=CVE-2025-26618
epss 0.00087 https://api.first.org/data/v1/epss?cve=CVE-2025-26618
epss 0.00087 https://api.first.org/data/v1/epss?cve=CVE-2025-26618
epss 0.00087 https://api.first.org/data/v1/epss?cve=CVE-2025-26618
epss 0.00087 https://api.first.org/data/v1/epss?cve=CVE-2025-26618
epss 0.00087 https://api.first.org/data/v1/epss?cve=CVE-2025-26618
epss 0.00087 https://api.first.org/data/v1/epss?cve=CVE-2025-26618
epss 0.00087 https://api.first.org/data/v1/epss?cve=CVE-2025-26618
epss 0.00087 https://api.first.org/data/v1/epss?cve=CVE-2025-26618
epss 0.00087 https://api.first.org/data/v1/epss?cve=CVE-2025-26618
epss 0.00087 https://api.first.org/data/v1/epss?cve=CVE-2025-26618
epss 0.00087 https://api.first.org/data/v1/epss?cve=CVE-2025-26618
epss 0.00087 https://api.first.org/data/v1/epss?cve=CVE-2025-26618
cvssv3.1 6.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv4 7 https://github.com/erlang/otp/commit/0ed2573cbd55c92e9125c9dc70fa1ca7fed82872
ssvc Track https://github.com/erlang/otp/commit/0ed2573cbd55c92e9125c9dc70fa1ca7fed82872
cvssv4 7 https://github.com/erlang/otp/security/advisories/GHSA-78cv-45vx-q6fr
ssvc Track https://github.com/erlang/otp/security/advisories/GHSA-78cv-45vx-q6fr
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-26618.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

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low

none

high

low

none

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H Found at https://github.com/erlang/otp/commit/0ed2573cbd55c92e9125c9dc70fa1ca7fed82872
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

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low

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low

none

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low

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-02-20T20:55:12Z/ Found at https://github.com/erlang/otp/commit/0ed2573cbd55c92e9125c9dc70fa1ca7fed82872
Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H Found at https://github.com/erlang/otp/security/advisories/GHSA-78cv-45vx-q6fr
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none


Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-02-20T20:55:12Z/ Found at https://github.com/erlang/otp/security/advisories/GHSA-78cv-45vx-q6fr
Exploit Prediction Scoring System (EPSS)
Percentile 0.21705
EPSS Score 0.00069
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:49:57.298581+00:00 Ubuntu USN Importer Import https://usn.ubuntu.com/7313-1/ 37.0.0