CVE-2026-21266

✕ Withdrawn — historical dataMEDIUMPre-NVD 4.3
4.3CVSS

Acrobat for Edge is affected by an out-of-bounds read 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 visit a maliciously crafted URL or interact with a compromised web page.

CVSS v3
4.3
EchelonGraph score
Not yet assessedThis CVE record was withdrawn by its numbering authority, so there is no vulnerability to rate.
EPSS PROB
—
EPSS %ILE
—
KEV
—Not applicable: this CVE ID was withdrawn

Published

October 20, 2026

Last Modified

October 20, 2026

References (1)

Frequently asked(4)

What is CVE-2026-21266?
CVE-2026-21266 is a rejected CVE ID: its record was withdrawn on October 20, 2026 and no longer describes a vulnerability. Reason given: this CVE was issued in error.
When was the CVE record for CVE-2026-21266 published?
The CVE record for CVE-2026-21266 was published on October 20, 2026. EchelonGraph's copy of the record carries a last-modified date of October 20, 2026; the record at its source may have been updated since.
What is the CVSS score of CVE-2026-21266?
CVE-2026-21266 has a CVSS base score of 4.3 (the CNA's own assessment, by adobe; NVD's own analysis pending).
How do I remediate CVE-2026-21266?
There is nothing to remediate under CVE-2026-21266: it is a rejected (withdrawn) CVE ID and no longer describes a vulnerability.