# Libcoap vulnerabilities

Source: https://junglewise.ai/threats/vendors/libcoap  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/vendors/libcoap.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 3 vulnerabilities in Libcoap: 0 in the last 7 days and 0 in the last 90 days, 2 of them critical and 0 exploited in the wild. The most recent, CVE-2026-29013, was published on 17 April 2026. 1 technology has a page of its own.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 0
- All time: 3 (2 critical, 0 exploited in the wild)

## About Libcoap

libcoap is an open-source project providing a C implementation of the Constrained Application Protocol.

## Latest Libcoap vulnerabilities

- [CVE-2026-29013: libcoap out-of-bounds read in OSCORE CBOR unwrap handling](https://junglewise.ai/threats/cve-2026-29013-libcoap-out-of-bounds-read-in-oscore-cbor-unwrap-handling) (critical, CVSS 9.8, published 17 Apr 2026)
- [CVE-2025-34468: libcoap stack buffer overflow in address resolution](https://junglewise.ai/threats/cve-2025-34468-libcoap-stack-buffer-overflow-in-address-resolution) (critical, CVSS 9.8, published 31 Dec 2025)
- [CVE-2025-59391: A memory disclosure vulnerability exists in libcoap's OSCORE configuration parser in libcoap before…](https://junglewise.ai/threats/cve-2025-59391-a-memory-disclosure-vulnerability-exists-in-libcoap-s-oscore) (medium, CVSS 6.5, published 8 Dec 2025)

## Most severe Libcoap vulnerabilities

- [CVE-2025-34468: libcoap stack buffer overflow in address resolution](https://junglewise.ai/threats/cve-2025-34468-libcoap-stack-buffer-overflow-in-address-resolution) (critical, CVSS 9.8, published 31 Dec 2025)
- [CVE-2026-29013: libcoap out-of-bounds read in OSCORE CBOR unwrap handling](https://junglewise.ai/threats/cve-2026-29013-libcoap-out-of-bounds-read-in-oscore-cbor-unwrap-handling) (critical, CVSS 9.8, published 17 Apr 2026)
- [CVE-2025-59391: A memory disclosure vulnerability exists in libcoap's OSCORE configuration parser in libcoap before…](https://junglewise.ai/threats/cve-2025-59391-a-memory-disclosure-vulnerability-exists-in-libcoap-s-oscore) (medium, CVSS 6.5, published 8 Dec 2025)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Libcoap technologies

- [Libcoap](https://junglewise.ai/threats/technologies/libcoap): 3 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Libcoap vulnerabilities", https://junglewise.ai/threats/vendors/libcoap, 9 November 2026.