September 28, 2026

CVE Watchtower

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CVE-2026-34621NVD

Vulnerability Summary

Acrobat Reader versions 24.001.30356, 26.001.21367 and earlier are affected by an Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity Level
HIGH(8.6)
Published Date
Apr 11, 2026
Last Modified
Aug 28, 2026
Exploitation Status
ACTIVE
EPSS Score (30-Day)
2.18%Probability
Root Weakness (CWE)
CWE-1321: Unknown/Unlisted Weakness ↗
Refer to the official MITRE database for detailed architectural specifications regarding this weakness.
CVSS v3.1 Base Metrics — Score 8.6 (HIGH)
Attack VectorLocal
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

Affected & Patched Versions

Affected Versions
  • Adobe Acrobat Dc < 26.001.21411
  • Adobe Acrobat Reader Dc < 26.001.21411
  • Adobe Acrobat >= 24.0.0 and < 24.001.30362
  • Adobe Acrobat >= 24.0.0 and < 24.001.30360
Patched Versions
  • Adobe Acrobat Dc 26.001.21411
  • Adobe Acrobat Reader Dc 26.001.21411
  • Adobe Acrobat 24.001.30362
  • Adobe Acrobat 24.001.30360
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🚫Ad-Free — Uninterrupted experience.
🎁7-Day Free Trial — Try Pro or Team, no card required.
📧Email Delivery — Threat intel straight to your inbox.
♾️Unlimited Vendors — Track your entire stack.
🚨All New CVEs — Be the first to know.
📈EPSS Spike Alerts — Catch rising risk before it peaks.
🎯Custom EPSS/CVSS — Filter noise, focus on risk.
🛡️Exploit Intel — A 2nd confirmed-exploit signal beyond KEV.
🐙GitHub Issues — Auto-tracked, no duplicates.
📬Weekly Digest — One clean summary, not inbox spam.
🏷️Watchlist Groups — Tag alerts by team (Infra/AppSec/SOC).
💬Webhooks — Slack & Teams integration.
🔀Smart Routing — Critical alerts to one channel, rest to another.
🚫Ad-Free — Uninterrupted experience.

External References