DaystoPatch

AppleExploited incident

Apple Multiple Products Integer Overflow or Wraparound Vulnerability

CVE-2021-30952High, CVSS 8.8In CISA's Known Exploited Vulnerabilities catalog since 5 Mar 2026

Automated timeline. Not yet checked by a researcher, so it doesn't count toward any grade.

UnknownNo evidence of the current fix status.

Response

Silence
not dated
First public report to first vendor statement
Exposure
not dated
First public report to first fix
Follow-through
not dated
First public report to a fix for every supported version
  • Vendor silent
  • Vendor statement, no fix
  • Fixed for some versions
  • Fixed when disclosed
  • Date only, no time of day

Timeline and evidence

Open a moment to see its source and archived quote.

  1. First public report

    CVE.org record CVE-2021-30952ClaimedQuote verified

    An integer overflow was addressed with improved input validation. This issue is fixed in tvOS 15.2, macOS Monterey 12.1, Safari 15.2, iOS 15.2 and iPadOS 15.2, watchOS 8.3. Processing maliciously

    CVE record published.

    Recorded time
    Precision
    To the minute
    Origin
    Claimed. The date the source gives.
    Quote check
    Found in the archived copy
    Snapshot
    sha256:a71950f21b56f997…
    Used in metrics
    Yes
    Dispute this timestamp
    3 more sources for this moment
    Mastodon postClaimedQuote not checked yet3 Mar 2026, 20:41 UTC

    Coruna: The Mysterious Journey of a Powerful iOS Exploit Kit # Coruna # UNC6353 # UNC6691 # CVE_2024_23222 # CVE_2022_48503 # CVE_2023_43000 # CVE_2021_30952 # CVE_2023_32409 # CVE_2020_27932 #

    Earliest third-party post we hold.

    Source
    Mastodon post social
    Recorded time
    Precision
    To the minute
    Origin
    Claimed. The date the source gives.
    Quote check
    Not checked yet
    Snapshot
    No archived snapshot
    Used in metrics
    No, kept for the record
    Dispute this timestamp
    Bluesky postClaimedQuote not checked yet4 Mar 2026, 21:02 UTC

    CVE-2021-30952 has confirmed exploit code according to the following sources: vulncheck kev.

    Earliest third-party post we hold.

    Source
    Bluesky post social
    Recorded time
    Precision
    To the minute
    Origin
    Claimed. The date the source gives.
    Quote check
    Not checked yet
    Snapshot
    No archived snapshot
    Used in metrics
    No, kept for the record
    Dispute this timestamp
    CISA KEV (CVE-2021-30952)ClaimedQuote verified5 Mar 2026

    Apple Multiple Products Integer Overflow or Wraparound Vulnerability

    Added to CISA's KEV catalog on 2026-03-05.

    Recorded time
    Precision
    Date only (no time of day is shown)
    Origin
    Claimed. The date the source gives.
    Quote check
    Found in the archived copy
    Snapshot
    sha256:ef8fffede5c47200…
    Used in metrics
    No, kept for the record
    Dispute this timestamp

  2. Vendor statement

    No public statement from the vendor found yet.

  3. First workaround

    No official mitigation found yet.

  4. First fix

    No fixed release found yet for any affected branch.

  5. Fixed for all versions

    No evidence yet of fixed releases for every supported branch.

Send this to your boss

No brief for this incident yet. We write one for every open incident and every critical bug exploited before a fix.

Affected products

  • Multiple Products

Related

Apple report card