VulnSocial

CVE-2026-77220Disclosure

LOWCVSS 7.1 · HIGH

Signal is active with 2 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

PDFio before 1.6.5 contains a dangling pointer vulnerability in the dictionary string-formatting function that stores a pointer to a stack-local buffer in the document dictionary without copying the string value. In multi-threaded or pooled-request environments, attackers or concurrent users can trigger stack memory reuse across requests, causing cross-tenant document content corruption by silently overwriting one caller's dictionary string values with another caller's data.

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0.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-825

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 2 mentions across 1 observed day

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 2 classified signals
  • 2 total mentions across 1 day

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-08-21: 2Technical Details · 2026-08-21: 208-21
Signal classification1 categories
Disclosure
2100.0%
Referenced assets2 URLs
By indicator
Full discourse2 posts
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-77220 PDFio before 1.6.5 contains a dangling pointer vulnerability in the dictionary string-formatting function that stores a pointer to a stack-local buffer in the documen… https://www.cve.org/CVERecord?id=CVE-2026-77220 ----- Traducción: CVE-2026-77220 PDF… http://infoflow.cloud`

    Post summary

    The tweet announces CVE-2026-77220, describing a dangling pointer bug in PDFio versions prior to 1.6.5; no PoC, exploits, or patches are referenced.

    0000017
    102 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-77220 PDFio before 1.6.5 contains a dangling pointer vulnerability in the dictionary string-formatting function that stores a pointer to a stack-local buffer in the documen… https://www.cve.org/CVERecord?id=CVE-2026-77220

    Post summary

    The post announces CVE‑2026‑77220 as a dangling pointer flaw in PDFio <1.6.5, providing technical details but no PoC, exploit, patch, or exploitation evidence.

    000001.2K
    58.0K followersView on X

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