# FEDORA-2026-0CE923A09D: Security update for 7 packages

FEDORA-2026-0CE923A09D, released April 17, 2026, fixes 3 CVEs across 7 products. None of them is reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/fix/linux/fedora-2026-0ce923a09d
- Platform: Linux
- Released: Apr 17, 2026
- Priority: Urgent (Closes CVE-2025-34468, rated Critical)
- CVEs: 3, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://bodhi.fedoraproject.org/updates/FEDORA-2026-0ce923a09d

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [libcoap](https://patchblox.com/security/data/product/linux/libcoap.md) | Fedora 43 | 4.3.5b-1.fc43 |
| [libcoap-debuginfo](https://patchblox.com/security/data/product/linux/libcoap-debuginfo.md) | Fedora 43 | 4.3.5b-1.fc43 |
| [libcoap-debugsource](https://patchblox.com/security/data/product/linux/libcoap-debugsource.md) | Fedora 43 | 4.3.5b-1.fc43 |
| [libcoap-devel](https://patchblox.com/security/data/product/linux/libcoap-devel.md) | Fedora 43 | 4.3.5b-1.fc43 |
| [libcoap-doc](https://patchblox.com/security/data/product/linux/libcoap-doc.md) | Fedora 43 | 4.3.5b-1.fc43 |
| [libcoap-utils](https://patchblox.com/security/data/product/linux/libcoap-utils.md) | Fedora 43 | 4.3.5b-1.fc43 |
| [libcoap-utils-debuginfo](https://patchblox.com/security/data/product/linux/libcoap-utils-debuginfo.md) | Fedora 43 | 4.3.5b-1.fc43 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2025-34468](https://patchblox.com/security/data/cve/CVE-2025-34468.md) | Urgent | libcoap3: libcoap versions up to and including 4.3.5, prior to commit 30db3ea, contain a stack-based buffer overflow in address... | 9.8 | 0.0075 |  |
| [CVE-2026-29013](https://patchblox.com/security/data/cve/CVE-2026-29013.md) | Urgent | libcoap3: libcoap contains out-of-bounds read vulnerabilities in OSCORE Appendix B.2 CBOR unwrap handling where get_byte_inc()... | 9.8 | 0.0030 |  |
| [CVE-2025-59391](https://patchblox.com/security/data/cve/CVE-2025-59391.md) | Routine | libcoap3: A memory disclosure vulnerability exists in libcoap's OSCORE configuration parser in libcoap before release-4.3.5-pat... | 6.5 | 0.0028 |  |

---

Data as of 2026-11-10T07:50:38Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo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.