# upx-ucl security updates

Patch Radar has 45 security fixes for upx-ucl, closing 22 CVEs. The newest is DEBIAN-CVE-2025-2849 (4.2.4-1.1), released March 27, 2025.

- Web page: https://patchblox.com/security/product/linux/upx-ucl
- Platform: Linux
- Supported: yes

## Security fixes, newest first

| Fix | Released | Fixed in | Priority | CVEs | Exploited |
|---|---|---|---|---:|---:|
| [DEBIAN-CVE-2025-2849](https://patchblox.com/security/data/fix/linux/debian-cve-2025-2849.md) | Mar 27, 2025 | Debian 13.5 (trixie) 4.2.4-1.1 | Routine | 1 | 0 |
| [DEBIAN-CVE-2025-2849](https://patchblox.com/security/data/fix/linux/debian-cve-2025-2849.md) | Mar 27, 2025 | Debian 14 4.2.4-1.1 | Routine | 1 | 0 |
| [DLA-3991-1](https://patchblox.com/security/data/fix/linux/dla-3991-1.md) | Dec 11, 2024 | Debian 11.6 (bullseye) 3.96-2+deb11u1 | Routine | 1 | 0 |
| [DEBIAN-CVE-2024-3209](https://patchblox.com/security/data/fix/linux/debian-cve-2024-3209.md) | Apr 2, 2024 | Debian 13.5 (trixie) 4.2.4-1 | Urgent | 1 | 0 |
| [DEBIAN-CVE-2024-3209](https://patchblox.com/security/data/fix/linux/debian-cve-2024-3209.md) | Apr 2, 2024 | Debian 14 4.2.4-1 | Urgent | 1 | 0 |
| [DEBIAN-CVE-2021-46179](https://patchblox.com/security/data/fix/linux/debian-cve-2021-46179.md) | Aug 22, 2023 | Debian 13.5 (trixie) 4.2.2-1 | Routine | 1 | 0 |
| [DEBIAN-CVE-2021-46179](https://patchblox.com/security/data/fix/linux/debian-cve-2021-46179.md) | Aug 22, 2023 | Debian 14 4.2.2-1 | Routine | 1 | 0 |
| [DEBIAN-CVE-2021-43317](https://patchblox.com/security/data/fix/linux/debian-cve-2021-43317.md) | Mar 24, 2023 | Debian 13.5 (trixie) 4.2.2-1 | High | 1 | 0 |
| [DEBIAN-CVE-2021-43317](https://patchblox.com/security/data/fix/linux/debian-cve-2021-43317.md) | Mar 24, 2023 | Debian 14 4.2.2-1 | High | 1 | 0 |
| [DEBIAN-CVE-2021-43316](https://patchblox.com/security/data/fix/linux/debian-cve-2021-43316.md) | Mar 24, 2023 | Debian 13.5 (trixie) 4.2.2-1 | High | 1 | 0 |
| [DEBIAN-CVE-2021-43316](https://patchblox.com/security/data/fix/linux/debian-cve-2021-43316.md) | Mar 24, 2023 | Debian 14 4.2.2-1 | High | 1 | 0 |
| [DEBIAN-CVE-2021-43315](https://patchblox.com/security/data/fix/linux/debian-cve-2021-43315.md) | Mar 24, 2023 | Debian 13.5 (trixie) 4.2.2-1 | High | 1 | 0 |
| [DEBIAN-CVE-2021-43315](https://patchblox.com/security/data/fix/linux/debian-cve-2021-43315.md) | Mar 24, 2023 | Debian 14 4.2.2-1 | High | 1 | 0 |
| [DEBIAN-CVE-2021-43314](https://patchblox.com/security/data/fix/linux/debian-cve-2021-43314.md) | Mar 24, 2023 | Debian 13.5 (trixie) 4.2.2-1 | High | 1 | 0 |
| [DEBIAN-CVE-2021-43314](https://patchblox.com/security/data/fix/linux/debian-cve-2021-43314.md) | Mar 24, 2023 | Debian 14 4.2.2-1 | High | 1 | 0 |
| [DEBIAN-CVE-2021-43313](https://patchblox.com/security/data/fix/linux/debian-cve-2021-43313.md) | Mar 24, 2023 | Debian 13.5 (trixie) 4.2.2-1 | High | 1 | 0 |
| [DEBIAN-CVE-2021-43313](https://patchblox.com/security/data/fix/linux/debian-cve-2021-43313.md) | Mar 24, 2023 | Debian 14 4.2.2-1 | High | 1 | 0 |
| [DEBIAN-CVE-2021-43312](https://patchblox.com/security/data/fix/linux/debian-cve-2021-43312.md) | Mar 24, 2023 | Debian 13.5 (trixie) 4.2.2-1 | High | 1 | 0 |
| [DEBIAN-CVE-2021-43312](https://patchblox.com/security/data/fix/linux/debian-cve-2021-43312.md) | Mar 24, 2023 | Debian 14 4.2.2-1 | High | 1 | 0 |
| [DEBIAN-CVE-2021-43311](https://patchblox.com/security/data/fix/linux/debian-cve-2021-43311.md) | Mar 24, 2023 | Debian 13.5 (trixie) 4.2.2-1 | High | 1 | 0 |
| [DEBIAN-CVE-2021-43311](https://patchblox.com/security/data/fix/linux/debian-cve-2021-43311.md) | Mar 24, 2023 | Debian 14 4.2.2-1 | High | 1 | 0 |
| [DEBIAN-CVE-2023-23456](https://patchblox.com/security/data/fix/linux/debian-cve-2023-23456.md) | Jan 12, 2023 | Debian 13.5 (trixie) 4.2.2-1 | Routine | 1 | 0 |
| [DEBIAN-CVE-2023-23456](https://patchblox.com/security/data/fix/linux/debian-cve-2023-23456.md) | Jan 12, 2023 | Debian 14 4.2.2-1 | Routine | 1 | 0 |
| [DEBIAN-CVE-2023-23457](https://patchblox.com/security/data/fix/linux/debian-cve-2023-23457.md) | Jan 12, 2023 | Debian 13.5 (trixie) 4.2.2-1 | Routine | 1 | 0 |
| [DEBIAN-CVE-2023-23457](https://patchblox.com/security/data/fix/linux/debian-cve-2023-23457.md) | Jan 12, 2023 | Debian 14 4.2.2-1 | Routine | 1 | 0 |
| [DEBIAN-CVE-2020-27801](https://patchblox.com/security/data/fix/linux/debian-cve-2020-27801.md) | Aug 25, 2022 | Debian 13.5 (trixie) 4.2.2-1 | High | 1 | 0 |
| [DEBIAN-CVE-2020-27801](https://patchblox.com/security/data/fix/linux/debian-cve-2020-27801.md) | Aug 25, 2022 | Debian 14 4.2.2-1 | High | 1 | 0 |
| [DEBIAN-CVE-2020-27796](https://patchblox.com/security/data/fix/linux/debian-cve-2020-27796.md) | Aug 25, 2022 | Debian 13.5 (trixie) 4.2.2-1 | High | 1 | 0 |
| [DEBIAN-CVE-2020-27796](https://patchblox.com/security/data/fix/linux/debian-cve-2020-27796.md) | Aug 25, 2022 | Debian 14 4.2.2-1 | High | 1 | 0 |
| [DEBIAN-CVE-2020-27800](https://patchblox.com/security/data/fix/linux/debian-cve-2020-27800.md) | Aug 25, 2022 | Debian 13.5 (trixie) 4.2.2-1 | High | 1 | 0 |
| [DEBIAN-CVE-2020-27800](https://patchblox.com/security/data/fix/linux/debian-cve-2020-27800.md) | Aug 25, 2022 | Debian 14 4.2.2-1 | High | 1 | 0 |
| [DEBIAN-CVE-2020-27799](https://patchblox.com/security/data/fix/linux/debian-cve-2020-27799.md) | Aug 25, 2022 | Debian 13.5 (trixie) 4.2.2-1 | High | 1 | 0 |
| [DEBIAN-CVE-2020-27799](https://patchblox.com/security/data/fix/linux/debian-cve-2020-27799.md) | Aug 25, 2022 | Debian 14 4.2.2-1 | High | 1 | 0 |
| [DEBIAN-CVE-2020-27802](https://patchblox.com/security/data/fix/linux/debian-cve-2020-27802.md) | Aug 25, 2022 | Debian 13.5 (trixie) 4.2.2-1 | Routine | 1 | 0 |
| [DEBIAN-CVE-2020-27802](https://patchblox.com/security/data/fix/linux/debian-cve-2020-27802.md) | Aug 25, 2022 | Debian 14 4.2.2-1 | Routine | 1 | 0 |
| [DEBIAN-CVE-2020-27798](https://patchblox.com/security/data/fix/linux/debian-cve-2020-27798.md) | Aug 25, 2022 | Debian 13.5 (trixie) 4.2.2-1 | Routine | 1 | 0 |
| [DEBIAN-CVE-2020-27798](https://patchblox.com/security/data/fix/linux/debian-cve-2020-27798.md) | Aug 25, 2022 | Debian 14 4.2.2-1 | Routine | 1 | 0 |
| [DEBIAN-CVE-2020-27797](https://patchblox.com/security/data/fix/linux/debian-cve-2020-27797.md) | Aug 25, 2022 | Debian 13.5 (trixie) 4.2.2-1 | Routine | 1 | 0 |
| [DEBIAN-CVE-2020-27797](https://patchblox.com/security/data/fix/linux/debian-cve-2020-27797.md) | Aug 25, 2022 | Debian 14 4.2.2-1 | Routine | 1 | 0 |
| [DEBIAN-CVE-2020-27788](https://patchblox.com/security/data/fix/linux/debian-cve-2020-27788.md) | Aug 18, 2022 | Debian 13.5 (trixie) 3.96-1 | Routine | 1 | 0 |
| [DEBIAN-CVE-2020-27788](https://patchblox.com/security/data/fix/linux/debian-cve-2020-27788.md) | Aug 18, 2022 | Debian 14 3.96-1 | Routine | 1 | 0 |
| [DEBIAN-CVE-2020-27787](https://patchblox.com/security/data/fix/linux/debian-cve-2020-27787.md) | Aug 18, 2022 | Debian 13.5 (trixie) 3.96-1 | Routine | 1 | 0 |
| [DEBIAN-CVE-2020-27787](https://patchblox.com/security/data/fix/linux/debian-cve-2020-27787.md) | Aug 18, 2022 | Debian 14 3.96-1 | Routine | 1 | 0 |
| [DEBIAN-CVE-2020-27790](https://patchblox.com/security/data/fix/linux/debian-cve-2020-27790.md) | Aug 18, 2022 | Debian 13.5 (trixie) 3.96-1 | Routine | 1 | 0 |
| [DEBIAN-CVE-2020-27790](https://patchblox.com/security/data/fix/linux/debian-cve-2020-27790.md) | Aug 18, 2022 | Debian 14 3.96-1 | Routine | 1 | 0 |

---

Data as of 2026-11-07T06:34:28Z 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