VulnSocial

CVE-2026-40200Disclosure

LOWCVSS 8.1 · HIGH

Signal is active with 3 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

An issue was discovered in musl libc 0.7.10 through 1.2.6. Stack-based memory corruption can occur during qsort of very large arrays, due to incorrectly implemented double-word primitives. The number of elements must exceed about seven million, i.e., the 32nd Leonardo number on 32-bit platforms (or the 64th Leonardo number on 64-bit platforms, which is not practical).

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0.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-670

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 3 mentions across 1 observed day

What's happening

  • Technical details provided in 3 signals
  • Disclosure: 3 classified signals
  • 3 total mentions across 1 day

Deep dive

Activity timeline3 mentions / 1d
01223Mentions · 2026-04-11: 3Technical Details · 2026-04-11: 304-11
Signal classification1 categories
Disclosure
3100.0%
Referenced assets3 URLs
Full discourse3 posts
  • Open Source Security mailing list@oss_security
    Disclosure

    CVE-2026-40200: musl libc: stack corruption in qsort with sufficiently large inputs https://www.openwall.com/lists/oss-security/2026/04/10/13 when the number of elements to be sorted exceeds a certain threshold beyond 7 million elements on 32-bit. On 64-bit, the threshold is large enough not to be practical.

    Post summary

    The text discloses CVE‑2026‑40200, a stack corruption in musl libc’s qsort that triggers when sorting over 7 million elements on 32‑bit systems, noting the issue is not practical on 64‑bit.

    1301111.1K
    4.6K followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-40200 An issue was discovered in musl libc 0.7.10 through 1.2.6. Stack-based memory corruption can occur during qsort of very large arrays, due to incorrectly implemented d… https://www.cve.org/CVERecord?id=CVE-2026-40200

    Post summary

    The post reports a stack‑based memory corruption issue in musl libc’s qsort implementation for large arrays, marking a new vulnerability disclosure.

    00010856
    57.1K followersView on X
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-40200 An issue was discovered in musl libc 0.7.10 through 1.2.6. Stack-based memory corruption can occur during qsort of very large arrays, due to incorrectly implemented d… https://www.cve.org/CVERecord?id=CVE-2026-40200 ----- Traducción: Se descubrió un pr… http://infoflow.cloud`

    Post summary

    CVE‑2026‑40200 is disclosed as a stack‑based memory corruption bug in musl libc affecting qsort on large arrays, with no PoC, exploit, patch, or active exploitation mentioned.

    0000035
    71 followersView on X

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