# CVE-2025-43903: poppler: NSSCryptoSignBackend.cc in Poppler before 25.04.0 does not verify the adbe.pkcs7.sha1 signatures on documents, result... CVE-2025-43903 is fixed in 20 products on 1 platform, first by gir1.2-poppler-0.18 0.62.0-2ubuntu2.14+esm6, released April 18, 2025. It is not reported as exploited. Patch Radar priority: Routine. - Web page: https://patchblox.com/security/cve/CVE-2025-43903 - Priority: Routine - CVSS: 3.3 (low) - EPSS: 0.0011 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Apr 18, 2025 ## Description NSSCryptoSignBackend.cc in Poppler before 25.04.0 does not verify the adbe.pkcs7.sha1 signatures on documents, resulting in potential signature forgeries. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | gir1.2-poppler-0.18 Ubuntu 18.04.6 LTS (bionic) | 0.62.0-2ubuntu2.14+esm6 | [gir1.2-poppler-0.18 0.62.0-2ubuntu2.14+esm6](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-gir1.2-poppler-0.18-0.62.0-2ubuntu2.14-esm6.md) | Apr 18, 2025 | | Linux | gir1.2-poppler-0.18 Ubuntu 20.04 LTS (focal) | 0.86.1-0ubuntu1.7 | [gir1.2-poppler-0.18 0.86.1-0ubuntu1.7](https://patchblox.com/security/data/fix/linux/ubuntu-focal-gir1.2-poppler-0.18-0.86.1-0ubuntu1.7.md) | Apr 18, 2025 | | Linux | gir1.2-poppler-0.18 Ubuntu 22.04.1 LTS (jammy) | 22.02.0-2ubuntu0.8 | [gir1.2-poppler-0.18 22.02.0-2ubuntu0.8](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-gir1.2-poppler-0.18-22.02.0-2ubuntu0.8.md) | Apr 18, 2025 | | Linux | gir1.2-poppler-0.18 Ubuntu 24.04.5 LTS (noble) | 24.02.0-1ubuntu9.4 | [gir1.2-poppler-0.18 24.02.0-1ubuntu9.4](https://patchblox.com/security/data/fix/linux/ubuntu-noble-gir1.2-poppler-0.18-24.02.0-1ubuntu9.4.md) | Apr 18, 2025 | | Linux | gir1.2-poppler-0.18 Ubuntu 24.10 (oracular) | 24.08.0-1ubuntu0.3 | [gir1.2-poppler-0.18 24.08.0-1ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-gir1.2-poppler-0.18-24.08.0-1ubuntu0.3.md) | Jan 16, 2026 | | Linux | gir1.2-poppler-0.18 Ubuntu 25.04 (plucky) | 25.03.0-3ubuntu1 | [gir1.2-poppler-0.18 25.03.0-3ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-gir1.2-poppler-0.18-25.03.0-3ubuntu1.md) | Jan 16, 2026 | | Linux | libpoppler-cpp0t64 Ubuntu 24.04.5 LTS (noble) | 24.02.0-1ubuntu9.4 | [libpoppler-cpp0t64 24.02.0-1ubuntu9.4](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libpoppler-cpp0t64-24.02.0-1ubuntu9.4.md) | Apr 18, 2025 | | Linux | libpoppler-cpp0v5 Ubuntu 18.04.6 LTS (bionic) | 0.62.0-2ubuntu2.14+esm6 | [libpoppler-cpp0v5 0.62.0-2ubuntu2.14+esm6](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libpoppler-cpp0v5-0.62.0-2ubuntu2.14-esm6.md) | Apr 18, 2025 | | Linux | libpoppler-cpp0v5 Ubuntu 20.04 LTS (focal) | 0.86.1-0ubuntu1.7 | [libpoppler-cpp0v5 0.86.1-0ubuntu1.7](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libpoppler-cpp0v5-0.86.1-0ubuntu1.7.md) | Apr 18, 2025 | | Linux | libpoppler-cpp0v5 Ubuntu 22.04.1 LTS (jammy) | 22.02.0-2ubuntu0.8 | [libpoppler-cpp0v5 22.02.0-2ubuntu0.8](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libpoppler-cpp0v5-22.02.0-2ubuntu0.8.md) | Apr 18, 2025 | | Linux | libpoppler-cpp1 Ubuntu 24.10 (oracular) | 24.08.0-1ubuntu0.3 | [libpoppler-cpp1 24.08.0-1ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-libpoppler-cpp1-24.08.0-1ubuntu0.3.md) | Jan 16, 2026 | | Linux | libpoppler-cpp2 Ubuntu 25.04 (plucky) | 25.03.0-3ubuntu1 | [libpoppler-cpp2 25.03.0-3ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libpoppler-cpp2-25.03.0-3ubuntu1.md) | Jan 16, 2026 | | Linux | libpoppler-glib8 Ubuntu 18.04.6 LTS (bionic) | 0.62.0-2ubuntu2.14+esm6 | [libpoppler-glib8 0.62.0-2ubuntu2.14+esm6](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libpoppler-glib8-0.62.0-2ubuntu2.14-esm6.md) | Apr 18, 2025 | | Linux | libpoppler-glib8 Ubuntu 20.04 LTS (focal) | 0.86.1-0ubuntu1.7 | [libpoppler-glib8 0.86.1-0ubuntu1.7](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libpoppler-glib8-0.86.1-0ubuntu1.7.md) | Apr 18, 2025 | | Linux | libpoppler-glib8 Ubuntu 22.04.1 LTS (jammy) | 22.02.0-2ubuntu0.8 | [libpoppler-glib8 22.02.0-2ubuntu0.8](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libpoppler-glib8-22.02.0-2ubuntu0.8.md) | Apr 18, 2025 | | Linux | libpoppler-glib8t64 Ubuntu 24.04.5 LTS (noble) | 24.02.0-1ubuntu9.4 | [libpoppler-glib8t64 24.02.0-1ubuntu9.4](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libpoppler-glib8t64-24.02.0-1ubuntu9.4.md) | Apr 18, 2025 | | Linux | libpoppler-glib8t64 Ubuntu 24.10 (oracular) | 24.08.0-1ubuntu0.3 | [libpoppler-glib8t64 24.08.0-1ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-libpoppler-glib8t64-24.08.0-1ubuntu0.3.md) | Jan 16, 2026 | | Linux | libpoppler-glib8t64 Ubuntu 25.04 (plucky) | 25.03.0-3ubuntu1 | [libpoppler-glib8t64 25.03.0-3ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libpoppler-glib8t64-25.03.0-3ubuntu1.md) | Jan 16, 2026 | | Linux | libpoppler-qt5-1 Ubuntu 18.04.6 LTS (bionic) | 0.62.0-2ubuntu2.14+esm6 | [libpoppler-qt5-1 0.62.0-2ubuntu2.14+esm6](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libpoppler-qt5-1-0.62.0-2ubuntu2.14-esm6.md) | Apr 18, 2025 | | Linux | libpoppler-qt5-1 Ubuntu 20.04 LTS (focal) | 0.86.1-0ubuntu1.7 | [libpoppler-qt5-1 0.86.1-0ubuntu1.7](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libpoppler-qt5-1-0.86.1-0ubuntu1.7.md) | Apr 18, 2025 | | Linux | libpoppler-qt5-1 Ubuntu 22.04.1 LTS (jammy) | 22.02.0-2ubuntu0.8 | [libpoppler-qt5-1 22.02.0-2ubuntu0.8](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libpoppler-qt5-1-22.02.0-2ubuntu0.8.md) | Apr 18, 2025 | | Linux | libpoppler-qt5-1t64 Ubuntu 24.04.5 LTS (noble) | 24.02.0-1ubuntu9.4 | [libpoppler-qt5-1t64 24.02.0-1ubuntu9.4](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libpoppler-qt5-1t64-24.02.0-1ubuntu9.4.md) | Apr 18, 2025 | | Linux | libpoppler-qt5-1t64 Ubuntu 24.10 (oracular) | 24.08.0-1ubuntu0.3 | [libpoppler-qt5-1t64 24.08.0-1ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-libpoppler-qt5-1t64-24.08.0-1ubuntu0.3.md) | Jan 16, 2026 | | Linux | libpoppler-qt5-1t64 Ubuntu 25.04 (plucky) | 25.03.0-3ubuntu1 | [libpoppler-qt5-1t64 25.03.0-3ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libpoppler-qt5-1t64-25.03.0-3ubuntu1.md) | Jan 16, 2026 | | Linux | libpoppler-qt6-3t64 Ubuntu 24.04.5 LTS (noble) | 24.02.0-1ubuntu9.4 | [libpoppler-qt6-3t64 24.02.0-1ubuntu9.4](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libpoppler-qt6-3t64-24.02.0-1ubuntu9.4.md) | Apr 18, 2025 | | Linux | libpoppler-qt6-3t64 Ubuntu 24.10 (oracular) | 24.08.0-1ubuntu0.3 | [libpoppler-qt6-3t64 24.08.0-1ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-libpoppler-qt6-3t64-24.08.0-1ubuntu0.3.md) | Jan 16, 2026 | | Linux | libpoppler-qt6-3t64 Ubuntu 25.04 (plucky) | 25.03.0-3ubuntu1 | [libpoppler-qt6-3t64 25.03.0-3ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libpoppler-qt6-3t64-25.03.0-3ubuntu1.md) | Jan 16, 2026 | | Linux | libpoppler118 Ubuntu 22.04.1 LTS (jammy) | 22.02.0-2ubuntu0.8 | [libpoppler118 22.02.0-2ubuntu0.8](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libpoppler118-22.02.0-2ubuntu0.8.md) | Apr 18, 2025 | | Linux | libpoppler134 Ubuntu 24.04.5 LTS (noble) | 24.02.0-1ubuntu9.4 | [libpoppler134 24.02.0-1ubuntu9.4](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libpoppler134-24.02.0-1ubuntu9.4.md) | Apr 18, 2025 | | Linux | libpoppler140 Ubuntu 24.10 (oracular) | 24.08.0-1ubuntu0.3 | [libpoppler140 24.08.0-1ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-libpoppler140-24.08.0-1ubuntu0.3.md) | Jan 16, 2026 | | Linux | libpoppler147 Ubuntu 25.04 (plucky) | 25.03.0-3ubuntu1 | [libpoppler147 25.03.0-3ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libpoppler147-25.03.0-3ubuntu1.md) | Jan 16, 2026 | | Linux | libpoppler73 Ubuntu 18.04.6 LTS (bionic) | 0.62.0-2ubuntu2.14+esm6 | [libpoppler73 0.62.0-2ubuntu2.14+esm6](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libpoppler73-0.62.0-2ubuntu2.14-esm6.md) | Apr 18, 2025 | | Linux | libpoppler97 Ubuntu 20.04 LTS (focal) | 0.86.1-0ubuntu1.7 | [libpoppler97 0.86.1-0ubuntu1.7](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libpoppler97-0.86.1-0ubuntu1.7.md) | Apr 18, 2025 | | Linux | poppler Debian 12.15 (bookworm) | 22.12.0-2+deb12u3 | [DEBIAN-CVE-2025-43903](https://patchblox.com/security/data/fix/linux/debian-cve-2025-43903.md) | Apr 18, 2025 | | Linux | poppler Debian 13.5 (trixie) | 25.03.0-4 | [DEBIAN-CVE-2025-43903](https://patchblox.com/security/data/fix/linux/debian-cve-2025-43903.md) | Apr 18, 2025 | | Linux | poppler Debian 14 | 25.03.0-4 | [DEBIAN-CVE-2025-43903](https://patchblox.com/security/data/fix/linux/debian-cve-2025-43903.md) | Apr 18, 2025 | | Linux | poppler opensuse-leap 15.6 | 24.03.0-150600.3.13.1 | [SUSE-SU-2025:1434-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-1434-1.md) | May 2, 2025 | | Linux | poppler sles 15.6 | 24.03.0-150600.3.13.1 | [SUSE-SU-2025:1434-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-1434-1.md) | May 2, 2025 | | Linux | poppler-qt5 opensuse-leap 15.6 | 24.03.0-150600.3.13.1 | [SUSE-SU-2025:1434-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-1434-1.md) | May 2, 2025 | | Linux | poppler-qt5 sles 15.6 | 24.03.0-150600.3.13.1 | [SUSE-SU-2025:1434-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-1434-1.md) | May 2, 2025 | | Linux | poppler-qt6 opensuse-leap 15.6 | 24.03.0-150600.3.13.1 | [SUSE-SU-2025:1434-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-1434-1.md) | May 2, 2025 | | Linux | poppler-qt6 sles 15.6 | 24.03.0-150600.3.13.1 | [SUSE-SU-2025:1434-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-1434-1.md) | May 2, 2025 | | Linux | poppler-utils Ubuntu 18.04.6 LTS (bionic) | 0.62.0-2ubuntu2.14+esm6 | [poppler-utils 0.62.0-2ubuntu2.14+esm6](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-poppler-utils-0.62.0-2ubuntu2.14-esm6.md) | Apr 18, 2025 | | Linux | poppler-utils Ubuntu 20.04 LTS (focal) | 0.86.1-0ubuntu1.7 | [poppler-utils 0.86.1-0ubuntu1.7](https://patchblox.com/security/data/fix/linux/ubuntu-focal-poppler-utils-0.86.1-0ubuntu1.7.md) | Apr 18, 2025 | | Linux | poppler-utils Ubuntu 22.04.1 LTS (jammy) | 22.02.0-2ubuntu0.8 | [poppler-utils 22.02.0-2ubuntu0.8](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-poppler-utils-22.02.0-2ubuntu0.8.md) | Apr 18, 2025 | | Linux | poppler-utils Ubuntu 24.04.5 LTS (noble) | 24.02.0-1ubuntu9.4 | [poppler-utils 24.02.0-1ubuntu9.4](https://patchblox.com/security/data/fix/linux/ubuntu-noble-poppler-utils-24.02.0-1ubuntu9.4.md) | Apr 18, 2025 | | Linux | poppler-utils Ubuntu 24.10 (oracular) | 24.08.0-1ubuntu0.3 | [poppler-utils 24.08.0-1ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-poppler-utils-24.08.0-1ubuntu0.3.md) | Jan 16, 2026 | | Linux | poppler-utils Ubuntu 25.04 (plucky) | 25.03.0-3ubuntu1 | [poppler-utils 25.03.0-3ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-poppler-utils-25.03.0-3ubuntu1.md) | Jan 16, 2026 | --- Data as of 2026-11-08T13:06:02Z UTC. 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