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Vulnerability details: VCID-kt4b-7ffh-4bch
Vulnerability ID VCID-kt4b-7ffh-4bch
Aliases CVE-2025-13034
Summary When using `CURLOPT_PINNEDPUBLICKEY` option with libcurl or `--pinnedpubkey` with the curl tool,curl should check the public key of the server certificate to verify the peer. This check was skipped in a certain condition that would then make curl allow the connection without performing the proper check, thus not noticing a possible impostor. To skip this check, the connection had to be done with QUIC with ngtcp2 built to use GnuTLS and the user had to explicitly disable the standard certificate verification.
Status Published
Exploitability 0.5
Weighted Severity 6.1
Risk 3.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-295 Improper Certificate Validation
System Score Found at
cvssv3 6.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-13034.json
epss 0.00011 https://api.first.org/data/v1/epss?cve=CVE-2025-13034
epss 0.00011 https://api.first.org/data/v1/epss?cve=CVE-2025-13034
epss 0.00011 https://api.first.org/data/v1/epss?cve=CVE-2025-13034
epss 0.00011 https://api.first.org/data/v1/epss?cve=CVE-2025-13034
epss 0.00011 https://api.first.org/data/v1/epss?cve=CVE-2025-13034
epss 0.00011 https://api.first.org/data/v1/epss?cve=CVE-2025-13034
epss 0.00011 https://api.first.org/data/v1/epss?cve=CVE-2025-13034
epss 0.00011 https://api.first.org/data/v1/epss?cve=CVE-2025-13034
cvssv3.1 5.9 https://curl.se/docs/CVE-2025-13034.html
cvssv3.1 Medium https://curl.se/docs/CVE-2025-13034.html
ssvc Track https://curl.se/docs/CVE-2025-13034.html
cvssv3.1 5.9 https://curl.se/docs/CVE-2025-13034.json
ssvc Track https://curl.se/docs/CVE-2025-13034.json
cvssv3.1 6.3 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-13034.json
https://api.first.org/data/v1/epss?cve=CVE-2025-13034
https://curl.se/docs/CVE-2025-13034.html
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
2426406 https://bugzilla.redhat.com/show_bug.cgi?id=2426406
CVE-2025-13034.json https://curl.se/docs/CVE-2025-13034.json
USN-8062-1 https://usn.ubuntu.com/8062-1/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-13034.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

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://curl.se/docs/CVE-2025-13034.html
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: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-01-08T14:56:11Z/ Found at https://curl.se/docs/CVE-2025-13034.html
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://curl.se/docs/CVE-2025-13034.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

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-01-08T14:56:11Z/ Found at https://curl.se/docs/CVE-2025-13034.json
Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N 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
Exploit Prediction Scoring System (EPSS)
Percentile 0.01204
EPSS Score 0.00011
Published At April 2, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T17:19:35.987703+00:00 Ubuntu USN Importer Import https://usn.ubuntu.com/8062-1/ 38.0.0