CVE-2026-5460General(wolfssl / wolfssl)

LOWCVSS 6.5 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

A heap use-after-free exists in wolfSSL's TLS 1.3 post-quantum cryptography (PQC) hybrid KeyShare processing. In the error handling path of TLSX_KeyShare_ProcessPqcHybridClient() in src/tls.c, the inner function TLSX_KeyShare_ProcessPqcClient_ex() frees a KyberKey object upon encountering an error. The caller then invokes TLSX_KeyShare_FreeAll(), which attempts to call ForceZero() on the already-freed KyberKey, resulting in writes of zero bytes over freed heap memory.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-416

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • wolfssl

Threat summary

  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 1 signal
  • General: 1 classified signal
  • Disclosure: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-04-10); latest day: 1
  • 2 total mentions across 2 days

Affected systems

Vendors
Products
wolfssl

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-04-10: 1Mentions · 2026-04-14: 1Technical Details · 2026-04-14: 104-1004-14
Signal classification2 categories
General
150.0%
Disclosure
150.0%
Referenced assets2 URLs
Classification over time
DateTotalLabels
2026-04-101
General1
2026-04-141
Disclosure1
Full discourse2 posts
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-5460 Heap Use-After-Free in wolfSSL TLS 1.3 Post-Quantum Cryptography Hybrid KeyShare Processing https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-5460

    Post summary

    The post discloses a heap use‑after‑free vulnerability in wolfSSL TLS 1.3 hybrid key share processing; no PoC, exploit, or remediation details are provided.

    0000045
    4.0K followersView on X
  • CVEarity@CVEarity
    General

    ⚡ New CVE Alert: CVE-2026-5460 📊 Severity: 6.3 🚨 Risk Level: Medium 🧩 Affects: Multiple / Unspecified Products Reference: https://nvd.nist.gov/vuln/detail/CVE-2026-5460 #CVE-2026-5460 #CVE #Medium #CyberSecurity #InfoSec https://t.co/D5JhBTPHUL

    Post summary

    The tweet announces CVE‑2026‑5460 with a 6.3 severity score and links to the NVD entry, but provides no further technical or exploitation details.

    0000036
    123 followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appwolfsslwolfssl---

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