CVE-2026-81977

Acrobat Reader | Integer Underflow (Wrap or Wraparound) (CWE-191)

CVSS 3.1 5.5 MEDIUMCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-81977

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-81977

Published

Adobe Acrobat

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "defaultStatus": "unaffected",
                    "product": "Adobe Acrobat",
                    "vendor": "Adobe",
                    "versions": [
                        {
                            "lessThanOrEqual": "26.002.21900",
                            "status": "affected",
                            "version": "0",
                            "versionType": "custom"
                        },
                        {
                            "status": "unaffected",
                            "version": "26.002.21901",
                            "versionType": "custom"
                        }
                    ]
                }

Acrobat Reader

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "defaultStatus": "unaffected",
                    "product": "Acrobat Reader",
                    "vendor": "Adobe",
                    "versions": [
                        {
                            "lessThanOrEqual": "26.002.21900",
                            "status": "affected",
                            "version": "0",
                            "versionType": "custom"
                        },
                        {
                            "status": "unaffected",
                            "version": "26.002.21901",
                            "versionType": "custom"
                        }
                    ]
                }

Acrobat 2024

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "defaultStatus": "unaffected",
                    "product": "Acrobat 2024",
                    "vendor": "Adobe",
                    "versions": [
                        {
                            "lessThanOrEqual": "24.001.30383",
                            "status": "affected",
                            "version": "0",
                            "versionType": "custom"
                        },
                        {
                            "status": "unaffected",
                            "version": "24.001.30429",
                            "versionType": "custom"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON