CVE-2026-42483Disclosure(hashcat / hashcat)

LOWCVSS 9.8 · CRITICAL

Signal is active with 4 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-based buffer overflow in the Kerberos hash parser in hashcat v7.1.2 allows an attacker to cause a denial of service or possibly execute arbitrary code via a crafted Kerberos hash file. The issue affects module_hash_decode in multiple Kerberos-related modules because account_info_len is calculated from untrusted delimiter positions without upper-bound validation before memcpy copies the data into a fixed-size account_info buffer.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-787CWE-122

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

Momentum

STABLE

Are you affected?

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

  • hashcat

Threat summary

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

What's happening

  • Technical details provided in 4 signals
  • Disclosure: 4 classified signals
  • General: 1 classified signal
  • Peaked at 4 mentions on most recent observed day (2026-05-13)
  • 5 total mentions across 2 days

Affected systems

Vendors
Products
hashcat

1 version affected across 1 product

Deep dive

Activity timeline5 mentions / 2d
01234Mentions · 2026-05-01: 1Mentions · 2026-05-13: 4Technical Details · 2026-05-01: 1Technical Details · 2026-05-13: 305-0105-13
Signal classification2 categories
Disclosure
480.0%
General
120.0%
Referenced assets3 URLs
Classification over time
DateTotalLabels
2026-05-011
Disclosure1
2026-05-134
Disclosure3General1
Full discourse5 posts
  • Lyrie.ai@lyrie_ai
    Disclosure

    --- Validated by the Lyrie Threat Intelligence Pipeline — 3 independent sources confirmed before publication. No speculation. CVE: CVE-2026-42483 CVSS: 9.8 (3.1) — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Severity: CRITICAL Status: Critical advisory

    Post summary

    The text is a brief disclosure of CVE-2026-42483, providing its CVSS score and critical severity, but no proof of concept, exploit code, or patch details.

    1000034
    210 followersView on X
  • Lyrie.ai@lyrie_ai
    Disclosure

    CVE: CVE-2026-42483 CVSS: 9.8 (3.1) — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Severity: CRITICAL Status: Critical advisory A heap-based buffer overflow in the Kerberos hash parser in hashcat v7.1.2 allows an attacker to cause a denial of service or possibly…

    Post summary

    The text discloses a critical heap‑based buffer overflow vulnerability (CVE‑2026‑42483) in hashcat's Kerberos hash parser, noting its high CVSS score and severity, but offers no PoC, exploit, or patch details.

    1000046
    210 followersView on X
  • Lyrie.ai@lyrie_ai
    Disclosure

    CRITICAL: CVE-2026-42483 (CVSS 9.8) — hashcat hashcat. CVE: CVE-2026-42483 CVSS: 9.8 (3.1) — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Severity: CRITICAL Status: Critical advisory

    Post summary

    The advisory announces CVE-2026-42483 as a critical 9.8‑scored vulnerability affecting hashcat, but provides no PoC, exploit, active exploitation, or patch information.

    1000038
    210 followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-42483 Heap-Based Buffer Overflow in Hashcat Kerberos Hash Parser v7.1.2 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-42483 Vulnerability Alert Subscriptions: https://alerts.vulmon.com/?utm_source=twitter&utm_medium=social&utm_campaign=2102281&utm_content=1

    Post summary

    The text announces a heap-based buffer overflow vulnerability in Hashcat's Kerberos hash parser v7.1.2 and provides a link to a vulnerability database, but adds no PoC, exploit details, patch information, or evidence of active exploitation.

    0000160
    4.0K followersView on X
  • Lyrie.ai@lyrie_ai
    General

    https://lyrie.ai/research/research/cve-2026-42483-hashcat-hashcat #lyrie #cybersecurity #CVE #threatintel #zerodayattack

    Post summary

    The link refers to research on CVE‑2026‑42483 related to Hashcat, but no concrete details on PoC, exploitation, or mitigation are provided.

    0000025
    210 followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Apphashcathashcat7.1.2--

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