Answer in brief
CVE-2026-81977 records a Unknown severity vulnerability in Acrobat Reader | Integer Underflow (Wrap or Wraparound) (CWE-191). The current sources do not mark it as known exploited. The current feed maps Adobe/Acrobat 2024 (generic), Adobe/Acrobat Reader (generic), Adobe/Adobe Acrobat (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Adobe/Acrobat 2024 (generic), Adobe/Acrobat Reader (generic), Adobe/Adobe Acrobat (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Adobe/Acrobat 2024generic | 0 | Not reported |
| Adobe/Acrobat Readergeneric | 0 | Not reported |
| Adobe/Adobe Acrobatgeneric | 0 | Not reported |
Published upstream
Sep 8, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 8, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 8, 2026
Acrobat Reader is affected by an Integer Underflow (Wrap or Wraparound) vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to disclose sensitive information. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Quoted source text, attributed separately from HOL analysis.