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Vulnerability details: VCID-5ynz-7776-3bbt
Vulnerability ID VCID-5ynz-7776-3bbt
Aliases CVE-2025-43903
Summary NSSCryptoSignBackend.cc in Poppler before 25.04.0 does not verify the adbe.pkcs7.sha1 signatures on documents, resulting in potential signature forgeries.
Status Published
Exploitability 0.5
Weighted Severity 3.9
Risk 1.9
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-347 Improper Verification of Cryptographic Signature
System Score Found at
cvssv3 4.3 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-43903.json
epss 0.0001 https://api.first.org/data/v1/epss?cve=CVE-2025-43903
epss 0.0001 https://api.first.org/data/v1/epss?cve=CVE-2025-43903
epss 0.0001 https://api.first.org/data/v1/epss?cve=CVE-2025-43903
epss 8e-05 https://api.first.org/data/v1/epss?cve=CVE-2025-43903
epss 8e-05 https://api.first.org/data/v1/epss?cve=CVE-2025-43903
epss 8e-05 https://api.first.org/data/v1/epss?cve=CVE-2025-43903
epss 8e-05 https://api.first.org/data/v1/epss?cve=CVE-2025-43903
epss 8e-05 https://api.first.org/data/v1/epss?cve=CVE-2025-43903
epss 8e-05 https://api.first.org/data/v1/epss?cve=CVE-2025-43903
epss 8e-05 https://api.first.org/data/v1/epss?cve=CVE-2025-43903
epss 8e-05 https://api.first.org/data/v1/epss?cve=CVE-2025-43903
epss 8e-05 https://api.first.org/data/v1/epss?cve=CVE-2025-43903
epss 8e-05 https://api.first.org/data/v1/epss?cve=CVE-2025-43903
epss 8e-05 https://api.first.org/data/v1/epss?cve=CVE-2025-43903
epss 8e-05 https://api.first.org/data/v1/epss?cve=CVE-2025-43903
epss 8e-05 https://api.first.org/data/v1/epss?cve=CVE-2025-43903
epss 8e-05 https://api.first.org/data/v1/epss?cve=CVE-2025-43903
epss 8e-05 https://api.first.org/data/v1/epss?cve=CVE-2025-43903
cvssv3.1 4.3 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1 4.3 https://gitlab.freedesktop.org/poppler/poppler/-/commit/f1b9c830f145a0042e853d6462b2f9ca4016c669
ssvc Track https://gitlab.freedesktop.org/poppler/poppler/-/commit/f1b9c830f145a0042e853d6462b2f9ca4016c669
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-43903.json
https://api.first.org/data/v1/epss?cve=CVE-2025-43903
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-43903
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
1103545 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1103545
2361067 https://bugzilla.redhat.com/show_bug.cgi?id=2361067
CVE-2025-43903 https://nvd.nist.gov/vuln/detail/CVE-2025-43903
f1b9c830f145a0042e853d6462b2f9ca4016c669 https://gitlab.freedesktop.org/poppler/poppler/-/commit/f1b9c830f145a0042e853d6462b2f9ca4016c669
USN-7471-1 https://usn.ubuntu.com/7471-1/
No exploits are available.
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-43903.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:L/AC:L/PR:N/UI:N/S:C/C:N/I:L/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
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N Found at https://gitlab.freedesktop.org/poppler/poppler/-/commit/f1b9c830f145a0042e853d6462b2f9ca4016c669
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/2025-04-21T02:50:50Z/ Found at https://gitlab.freedesktop.org/poppler/poppler/-/commit/f1b9c830f145a0042e853d6462b2f9ca4016c669
Exploit Prediction Scoring System (EPSS)
Percentile 0.00735
EPSS Score 0.0001
Published At Sept. 9, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:53:02.937918+00:00 Ubuntu USN Importer Import https://usn.ubuntu.com/7471-1/ 37.0.0