CVE-2026-3664Disclosure(xlnt-community / xlnt)

LOWCVSS 5.5 · MEDIUM

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

A vulnerability was determined in xlnt-community xlnt up to 1.6.1. Impacted is the function xlnt::detail::compound_document::read_directory of the file source/detail/cryptography/compound_document.cpp of the component Encrypted XLSX File Parser. Executing a manipulation can lead to out-of-bounds read. The attack is restricted to local execution. The exploit has been publicly disclosed and may be utilized. This patch is called 147. Applying a patch is advised to resolve this issue.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-119CWE-125

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

Momentum

NONE

Are you affected?

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

  • xlnt

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

Affected systems

Products
xlnt

Deep dive

Activity timeline3 mentions / 1d
01223Mentions · 2026-03-07: 3Technical Details · 2026-03-07: 303-07
Signal classification1 categories
Disclosure
3100.0%
Referenced assets3 URLs
Full discourse3 posts
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-3664 Out-of-Bounds Read Vulnerability in xlnt-community xlnt Encrypted XLSX Parser https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-3664

    Post summary

    The text announces a new out-of-bounds read vulnerability (CVE‑2026‑3664) affecting the xlnt library’s encrypted XLSX parser.

    0000145
    4.0K followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-3664 A vulnerability was determined in xlnt-community xlnt up to 1.6.1. Impacted is the function xlnt::detail::compound_document::read_directory of the file source/detail/cr… https://www.cve.org/CVERecord?id=CVE-2026-3664

    Post summary

    CVE-2026-3664 is a vulnerability discovered in xlnt‑community xlnt affecting the compound_document::read_directory function up to version 1.6.1.

    00000108
    56.6K followersView on X
  • CyberDudeBivash® | Global Cybersecurity Company@cyberbivash
    Disclosure

    🚨 CYBERDUDEBIVASH SENTINEL APEX ALERT 🚨 Threat: CVE-2026-3664 - xlnt-community xlnt Encrypted XLSX File compound_document.cpp read_directory out-of-bounds Intel Report: https://ift.tt/EVi0dMN

    Post summary

    The tweet issues a threat alert for CVE‑2026‑3664, highlighting an out‑of‑bounds read flaw in xlnt-community’s encrypted XLSX handling, with no PoC or exploit details provided.

    0000027
    344 followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appxlnt-communityxlnt---

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