# openssl1.0 1.0.2n-1ubuntu5.13+esm6: openssl1.0 1.0.2n-1ubuntu5.13+esm6 for Ubuntu 18.04.6 LTS (bionic)

openssl1.0 1.0.2n-1ubuntu5.13+esm6, released August 27, 2026, fixes 3 CVEs in openssl1.0. None of them is reported as exploited. Patch Radar priority: High. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/linux/ubuntu-bionic-openssl1.0-1.0.2n-1ubuntu5.13-esm6
- Platform: Linux
- Released: Aug 27, 2026
- Priority: High (Closes CVE-2024-5535, high severity)
- CVEs: 3, exploited: 0, on CISA KEV: 0

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [openssl1.0](https://patchblox.com/security/data/product/linux/openssl1.0.md) | Ubuntu 18.04.6 LTS (bionic) | 1.0.2n-1ubuntu5.13+esm6 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2024-5535](https://patchblox.com/security/data/cve/CVE-2024-5535.md) | High | OpenSSL: CVE-2024-5535 SSL_select_next_proto buffer overread | 9.1 | 0.0613 |  |
| [CVE-2026-63072](https://patchblox.com/security/data/cve/CVE-2026-63072.md) | High | Heap Buffer Overflow in CMS Key Unwrapping | 7.5 | 0.0092 |  |
| [CVE-2026-54874](https://patchblox.com/security/data/cve/CVE-2026-54874.md) | High | Excessive Memory Use Buffering DTLS Records for a Future Epoch | 7.5 | 0.0062 |  |

---

Data as of 2026-11-12T13:55:20Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.