# CVE-2025-59362: Squid through 7.1 mishandles ASN.1 encoding of long SNMP OIDs. This occurs in asn_build_objid in lib/snmplib/asn1.c.

CVE-2025-59362 is fixed in 9 products on 1 platform, first by squid 3.5.27-1ubuntu1.14+esm5, released September 26, 2025. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2025-59362
- Priority: High
- CVSS: 8.2 (Important)
- EPSS: 0.0039
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 26, 2025
- Weakness: Encoding Error
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59362

## Description

Squid through 7.1 mishandles ASN.1 encoding of long SNMP OIDs. This occurs in asn_build_objid in lib/snmplib/asn1.c.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | squid Debian 11.6 (bullseye) | 4.13-10+deb11u6 | [DLA-4369-1](https://patchblox.com/security/data/fix/linux/dla-4369-1.md) | Nov 11, 2025 |
| Linux | squid Debian 12.15 (bookworm) | 5.7-2+deb12u5 | [DEBIAN-CVE-2025-59362](https://patchblox.com/security/data/fix/linux/debian-cve-2025-59362.md) | Sep 26, 2025 |
| Linux | squid Debian 13.5 (trixie) | 6.13-2+deb13u1 | [DEBIAN-CVE-2025-59362](https://patchblox.com/security/data/fix/linux/debian-cve-2025-59362.md) | Sep 26, 2025 |
| Linux | squid Debian 14 | 7.2-1 | [DEBIAN-CVE-2025-59362](https://patchblox.com/security/data/fix/linux/debian-cve-2025-59362.md) | Sep 26, 2025 |
| Linux | squid Ubuntu 18.04.6 LTS (bionic) | 3.5.27-1ubuntu1.14+esm5 | [squid 3.5.27-1ubuntu1.14+esm5](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-squid-3.5.27-1ubuntu1.14-esm5.md) | Sep 26, 2025 |
| Linux | squid Ubuntu 20.04 LTS (focal) | 4.10-1ubuntu1.13+esm2 | [squid 4.10-1ubuntu1.13+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-squid-4.10-1ubuntu1.13-esm2.md) | Sep 26, 2025 |
| Linux | squid Ubuntu 22.04.1 LTS (jammy) | 5.9-0ubuntu0.22.04.3 | [squid 5.9-0ubuntu0.22.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-squid-5.9-0ubuntu0.22.04.3.md) | Sep 26, 2025 |
| Linux | squid Ubuntu 24.04.5 LTS (noble) | 6.13-0ubuntu0.24.04.2 | [squid 6.13-0ubuntu0.24.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-noble-squid-6.13-0ubuntu0.24.04.2.md) | Sep 26, 2025 |
| Linux | squid Ubuntu 25.04 (plucky) | 6.13-1ubuntu1.1 | [squid 6.13-1ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-squid-6.13-1ubuntu1.1.md) | Jan 16, 2026 |
| Linux | squid Ubuntu 25.10 (questing) | 6.13-1ubuntu4 | [squid 6.13-1ubuntu4](https://patchblox.com/security/data/fix/linux/ubuntu-questing-squid-6.13-1ubuntu4.md) | Sep 26, 2025 |
| Linux | squid amzn 2023 | 7:6.13-1.amzn2023.0.2 | [ALAS2023-2025-1219](https://patchblox.com/security/data/fix/linux/alas2023-2025-1219.md) | Oct 14, 2025 |
| Linux | squid opensuse-leap 15.6 | 6.10-150600.3.9.1 | [SUSE-SU-2025:03606-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-03606-1.md) | Oct 15, 2025 |
| Linux | squid opensuse-leap 16.0 | 6.12-160000.3.1 | [OPENSUSE-SU-2026:20027-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20027-1.md) | Jan 14, 2026 |
| Linux | squid sles 15.6 | 6.10-150600.3.9.1 | [SUSE-SU-2025:03606-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-03606-1.md) | Oct 15, 2025 |
| Linux | squid sles 15.7 | 6.10-150600.3.9.1 | [SUSE-SU-2025:03606-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-03606-1.md) | Oct 15, 2025 |
| Linux | squid sles 16.0 | 6.12-160000.3.1 | [SUSE-SU-2026:20078-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-20078-1.md) | Jan 14, 2026 |
| Linux | squid-cgi Ubuntu 18.04.6 LTS (bionic) | 3.5.27-1ubuntu1.14+esm5 | [squid-cgi 3.5.27-1ubuntu1.14+esm5](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-squid-cgi-3.5.27-1ubuntu1.14-esm5.md) | Sep 26, 2025 |
| Linux | squid-cgi Ubuntu 20.04 LTS (focal) | 4.10-1ubuntu1.13+esm2 | [squid-cgi 4.10-1ubuntu1.13+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-squid-cgi-4.10-1ubuntu1.13-esm2.md) | Sep 26, 2025 |
| Linux | squid-cgi Ubuntu 22.04.1 LTS (jammy) | 5.9-0ubuntu0.22.04.3 | [squid-cgi 5.9-0ubuntu0.22.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-squid-cgi-5.9-0ubuntu0.22.04.3.md) | Sep 26, 2025 |
| Linux | squid-cgi Ubuntu 24.04.5 LTS (noble) | 6.13-0ubuntu0.24.04.2 | [squid-cgi 6.13-0ubuntu0.24.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-noble-squid-cgi-6.13-0ubuntu0.24.04.2.md) | Sep 26, 2025 |
| Linux | squid-cgi Ubuntu 25.04 (plucky) | 6.13-1ubuntu1.1 | [squid-cgi 6.13-1ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-squid-cgi-6.13-1ubuntu1.1.md) | Jan 16, 2026 |
| Linux | squid-cgi Ubuntu 25.10 (questing) | 6.13-1ubuntu4 | [squid-cgi 6.13-1ubuntu4](https://patchblox.com/security/data/fix/linux/ubuntu-questing-squid-cgi-6.13-1ubuntu4.md) | Sep 26, 2025 |
| Linux | squid-common Ubuntu 18.04.6 LTS (bionic) | 3.5.27-1ubuntu1.14+esm5 | [squid-common 3.5.27-1ubuntu1.14+esm5](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-squid-common-3.5.27-1ubuntu1.14-esm5.md) | Sep 26, 2025 |
| Linux | squid-common Ubuntu 20.04 LTS (focal) | 4.10-1ubuntu1.13+esm2 | [squid-common 4.10-1ubuntu1.13+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-squid-common-4.10-1ubuntu1.13-esm2.md) | Sep 26, 2025 |
| Linux | squid-common Ubuntu 22.04.1 LTS (jammy) | 5.9-0ubuntu0.22.04.3 | [squid-common 5.9-0ubuntu0.22.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-squid-common-5.9-0ubuntu0.22.04.3.md) | Sep 26, 2025 |
| Linux | squid-common Ubuntu 24.04.5 LTS (noble) | 6.13-0ubuntu0.24.04.2 | [squid-common 6.13-0ubuntu0.24.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-noble-squid-common-6.13-0ubuntu0.24.04.2.md) | Sep 26, 2025 |
| Linux | squid-common Ubuntu 25.04 (plucky) | 6.13-1ubuntu1.1 | [squid-common 6.13-1ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-squid-common-6.13-1ubuntu1.1.md) | Jan 16, 2026 |
| Linux | squid-common Ubuntu 25.10 (questing) | 6.13-1ubuntu4 | [squid-common 6.13-1ubuntu4](https://patchblox.com/security/data/fix/linux/ubuntu-questing-squid-common-6.13-1ubuntu4.md) | Sep 26, 2025 |
| Linux | squid-debuginfo amzn 2023 | 7:6.13-1.amzn2023.0.2 | [ALAS2023-2025-1219](https://patchblox.com/security/data/fix/linux/alas2023-2025-1219.md) | Oct 14, 2025 |
| Linux | squid-debugsource amzn 2023 | 7:6.13-1.amzn2023.0.2 | [ALAS2023-2025-1219](https://patchblox.com/security/data/fix/linux/alas2023-2025-1219.md) | Oct 14, 2025 |
| Linux | squid-openssl Ubuntu 22.04.1 LTS (jammy) | 5.9-0ubuntu0.22.04.3 | [squid-openssl 5.9-0ubuntu0.22.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-squid-openssl-5.9-0ubuntu0.22.04.3.md) | Sep 26, 2025 |
| Linux | squid-openssl Ubuntu 24.04.5 LTS (noble) | 6.13-0ubuntu0.24.04.2 | [squid-openssl 6.13-0ubuntu0.24.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-noble-squid-openssl-6.13-0ubuntu0.24.04.2.md) | Sep 26, 2025 |
| Linux | squid-openssl Ubuntu 25.04 (plucky) | 6.13-1ubuntu1.1 | [squid-openssl 6.13-1ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-squid-openssl-6.13-1ubuntu1.1.md) | Jan 16, 2026 |
| Linux | squid-openssl Ubuntu 25.10 (questing) | 6.13-1ubuntu4 | [squid-openssl 6.13-1ubuntu4](https://patchblox.com/security/data/fix/linux/ubuntu-questing-squid-openssl-6.13-1ubuntu4.md) | Sep 26, 2025 |
| Linux | squid-purge Ubuntu 18.04.6 LTS (bionic) | 3.5.27-1ubuntu1.14+esm5 | [squid-purge 3.5.27-1ubuntu1.14+esm5](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-squid-purge-3.5.27-1ubuntu1.14-esm5.md) | Sep 26, 2025 |
| Linux | squid-purge Ubuntu 20.04 LTS (focal) | 4.10-1ubuntu1.13+esm2 | [squid-purge 4.10-1ubuntu1.13+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-squid-purge-4.10-1ubuntu1.13-esm2.md) | Sep 26, 2025 |
| Linux | squid-purge Ubuntu 22.04.1 LTS (jammy) | 5.9-0ubuntu0.22.04.3 | [squid-purge 5.9-0ubuntu0.22.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-squid-purge-5.9-0ubuntu0.22.04.3.md) | Sep 26, 2025 |
| Linux | squid-purge Ubuntu 24.04.5 LTS (noble) | 6.13-0ubuntu0.24.04.2 | [squid-purge 6.13-0ubuntu0.24.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-noble-squid-purge-6.13-0ubuntu0.24.04.2.md) | Sep 26, 2025 |
| Linux | squid-purge Ubuntu 25.04 (plucky) | 6.13-1ubuntu1.1 | [squid-purge 6.13-1ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-squid-purge-6.13-1ubuntu1.1.md) | Jan 16, 2026 |
| Linux | squid-purge Ubuntu 25.10 (questing) | 6.13-1ubuntu4 | [squid-purge 6.13-1ubuntu4](https://patchblox.com/security/data/fix/linux/ubuntu-questing-squid-purge-6.13-1ubuntu4.md) | Sep 26, 2025 |
| Linux | squid3 Ubuntu 18.04.6 LTS (bionic) | 3.5.27-1ubuntu1.14+esm5 | [squid3 3.5.27-1ubuntu1.14+esm5](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-squid3-3.5.27-1ubuntu1.14-esm5.md) | Sep 26, 2025 |
| Linux | squidclient Ubuntu 18.04.6 LTS (bionic) | 3.5.27-1ubuntu1.14+esm5 | [squidclient 3.5.27-1ubuntu1.14+esm5](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-squidclient-3.5.27-1ubuntu1.14-esm5.md) | Sep 26, 2025 |
| Linux | squidclient Ubuntu 20.04 LTS (focal) | 4.10-1ubuntu1.13+esm2 | [squidclient 4.10-1ubuntu1.13+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-squidclient-4.10-1ubuntu1.13-esm2.md) | Sep 26, 2025 |
| Linux | squidclient Ubuntu 22.04.1 LTS (jammy) | 5.9-0ubuntu0.22.04.3 | [squidclient 5.9-0ubuntu0.22.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-squidclient-5.9-0ubuntu0.22.04.3.md) | Sep 26, 2025 |
| Linux | squidclient Ubuntu 24.04.5 LTS (noble) | 6.13-0ubuntu0.24.04.2 | [squidclient 6.13-0ubuntu0.24.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-noble-squidclient-6.13-0ubuntu0.24.04.2.md) | Sep 26, 2025 |
| Linux | squidclient Ubuntu 25.04 (plucky) | 6.13-1ubuntu1.1 | [squidclient 6.13-1ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-squidclient-6.13-1ubuntu1.1.md) | Jan 16, 2026 |
| Linux | squidclient Ubuntu 25.10 (questing) | 6.13-1ubuntu4 | [squidclient 6.13-1ubuntu4](https://patchblox.com/security/data/fix/linux/ubuntu-questing-squidclient-6.13-1ubuntu4.md) | Sep 26, 2025 |

---

Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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