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CVE-2026-53414 is a memory over-read vulnerability in Zoom Clients' annotation processing. The flaw is caused by a missing bounds check in the annotator deserialization logic for character or glyph annotation data. In the vulnerable path, the client allocates a buffer based on an attacker-controlled count value supplied in annotation protocol data, but then reads based on the actual bytes provided without ensuring the read stays within the allocated bounds. This can result in out-of-bounds reads from heap memory during processing of annotation objects received from another meeting participant over the network. The issue is reachable through Zoom's annotation feature during meetings and can affect recipients that automatically process the malformed annotation data. Reported consequences include client crashes and leakage of memory contents such as pointers and other in-memory data that may aid further exploitation.
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No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
23 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Out-of-bounds read vulnerability in Zoom's annotation handling that may leak memory pointers and assist ASLR bypass; Zoom assessed it as potentially leading to DoS.
One of two Zoom CVEs counted for a campaign described as chaining into a zero-click meeting-client compromise; no further technical detail is provided.
A Zoom vulnerability affecting Zoom Meetings / Zoom Workplace, associated with availability impact and user interaction per the listed CVSS vector.
A Zoom Workplace / Zoom Meetings vulnerability tracked as CVE-2026-53414. The content indicates it is a denial-of-service issue affecting Zoom products, based on the CVSS vectors showing no confidentiality or integrity impact and high availability impact.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.