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NVD / CVE Program· CNA apple

CVE-2021-30682: A logic issue was addressed with improved restrictions.

Noroxi assessment

Priority: Monitor (action score 22/100)

  • Public proof-of-concept code exists (GitHub); there is no record of exploitation in the wild.
  • Probability of exploitation in the next 30 days: 1.6% (FIRST EPSS); higher than 76.6% of all records.
  • Someone with local access to the system can trigger it. No account or password is required. A user must open a link or visit a page. No special conditions are required; it is repeatable.
  • Fixed version: accountsservice (AlmaLinux:8) 0.6.55-2.el8; accountsservice-devel (AlmaLinux:8) 0.6.55-2.el8; accountsservice-libs (AlmaLinux:8) 0.6.55-2.el8.
  • Mentioned 2 times in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to accountsservice (AlmaLinux:8) 0.6.55-2.el8; accountsservice-devel (AlmaLinux:8) 0.6.55-2.el8; accountsservice-libs (AlmaLinux:8) 0.6.55-2.el8 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

A logic issue was addressed with improved restrictions. This issue is fixed in tvOS 14.6, iOS 14.6 and iPadOS 14.6, Safari 14.1.1, macOS Big Sur 11.4, watchOS 7.5. A malicious application may be able to leak sensitive user information.

MediumCVSS 5.5 · v3.1—Proof of concept Fix available
Published
Sep 8, 2021
Updated
Jun 16, 2026
EPSS
1.6% · 76th percentile
CWE
—

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.6%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • Proof of concept exists, no weaponized module
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2021-30682

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
applesafari
appleipados
appleiphone os
applemacos
appletvos
applewatchos

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • apple ipadosbefore 14.6
  • apple iphone osbefore 14.6
  • apple macos11.0 and later · before 11.4
  • apple safaribefore 14.1.1
  • apple tvosbefore 14.6
  • apple watchosbefore 7.5

Versions reported by the vendor

Affected version ranges reported by the assigning authority (apple). Independent of NVD's CPE analysis and usually ahead of it.

  • Apple iOS and iPadOS

    • unspecified and later · before 14.6affected

  • Apple macOS

    • unspecified and later · before 11.4affected
    • unspecified and later · before 14.6affected
    • unspecified and later · before 7.5affected
    • unspecified and later · before 14.1affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
AlmaLinux:8accountsservicebefore 0.6.55-2.el80.6.55-2.el8
AlmaLinux:8accountsservice-develbefore 0.6.55-2.el80.6.55-2.el8
AlmaLinux:8accountsservice-libsbefore 0.6.55-2.el80.6.55-2.el8
AlmaLinux:8gdmbefore 1:40.0-15.el81:40.0-15.el8
AlmaLinux:8gnome-autoarbefore 0.2.3-2.el80.2.3-2.el8
AlmaLinux:8gnome-calculatorbefore 3.28.2-2.el83.28.2-2.el8
AlmaLinux:8gnome-classic-sessionbefore 3.32.1-20.el83.32.1-20.el8
AlmaLinux:8gnome-control-centerbefore 3.28.2-28.el83.28.2-28.el8
AlmaLinux:8gnome-control-center-filesystembefore 3.28.2-28.el83.28.2-28.el8
AlmaLinux:8gnome-online-accountsbefore 3.28.2-3.el83.28.2-3.el8
AlmaLinux:8gnome-online-accounts-develbefore 3.28.2-3.el83.28.2-3.el8
AlmaLinux:8gnome-sessionbefore 3.28.1-13.el83.28.1-13.el8
AlmaLinux:8gnome-session-kiosk-sessionbefore 3.28.1-13.el83.28.1-13.el8
AlmaLinux:8gnome-session-wayland-sessionbefore 3.28.1-13.el83.28.1-13.el8
AlmaLinux:8gnome-session-xsessionbefore 3.28.1-13.el83.28.1-13.el8
AlmaLinux:8gnome-settings-daemonbefore 3.32.0-16.el8.alma3.32.0-16.el8.alma
AlmaLinux:8gnome-shellbefore 3.32.2-40.el83.32.2-40.el8
AlmaLinux:8gnome-shell-extension-apps-menubefore 3.32.1-20.el83.32.1-20.el8
AlmaLinux:8gnome-shell-extension-auto-move-windowsbefore 3.32.1-20.el83.32.1-20.el8
AlmaLinux:8gnome-shell-extension-commonbefore 3.32.1-20.el83.32.1-20.el8
AlmaLinux:8gnome-shell-extension-dash-to-dockbefore 3.32.1-20.el83.32.1-20.el8
AlmaLinux:8gnome-shell-extension-desktop-iconsbefore 3.32.1-20.el83.32.1-20.el8
AlmaLinux:8gnome-shell-extension-disable-screenshieldbefore 3.32.1-20.el83.32.1-20.el8
AlmaLinux:8gnome-shell-extension-drive-menubefore 3.32.1-20.el83.32.1-20.el8

+71

Same product

apple: all records

Other highest-scoring records for the same primary product.

  • CVE-2025-43529A use-after-free issue was addressed with improved memory management.KEV
    73This week
  • CVE-2023-28205A use after free issue was addressed with improved memory management.KEV
    73This week
  • CVE-2023-32439A type confusion issue was addressed with improved checks.KEV
    72This week

Published before and after this one in the same product

  • ← EarlierCVE-2021-30661Sep 8, 2021 · A use after free issue was addressed with improved memory management.KEV
    66This week
  • ← EarlierCVE-2021-30663Sep 8, 2021 · An integer overflow was addressed with improved input validation.KEV
    66This week
  • Later →CVE-2021-30689Sep 8, 2021 · A logic issue was addressed with improved state management.
    24Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
almalinux:accountsservice0.6.55-2.el8 · AlmaLinux:8Package registry (OSV)
almalinux:accountsservice-devel0.6.55-2.el8 · AlmaLinux:8Package registry (OSV)
almalinux:accountsservice-libs0.6.55-2.el8 · AlmaLinux:8Package registry (OSV)
almalinux:gdm1:40.0-15.el8 · AlmaLinux:8Package registry (OSV)
almalinux:gnome-autoar0.2.3-2.el8 · AlmaLinux:8Package registry (OSV)
almalinux:gnome-calculator3.28.2-2.el8 · AlmaLinux:8Package registry (OSV)
almalinux:gnome-classic-session3.32.1-20.el8 · AlmaLinux:8Package registry (OSV)
almalinux:gnome-control-center3.28.2-28.el8 · AlmaLinux:8Package registry (OSV)
almalinux:gnome-control-center-filesystem3.28.2-28.el8 · AlmaLinux:8Package registry (OSV)
almalinux:gnome-online-accounts3.28.2-3.el8 · AlmaLinux:8Package registry (OSV)
almalinux:LibRaw0.19.5-3.el8 · AlmaLinux:8Package registry (OSV)
almalinux:LibRaw-devel0.19.5-3.el8 · AlmaLinux:8Package registry (OSV)
debian:webkit2gtk2.32.0-2 · Debian:12Package registry (OSV)
debian:wpewebkit2.32.0-2 · Debian:12Package registry (OSV)
red hat:LibRaw0:0.19.5-3.el8 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:LibRaw-debuginfo0:0.19.5-3.el8 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:LibRaw-debugsource0:0.19.5-3.el8 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:webkit2gtk30:2.32.3-2.el8 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:webkit2gtk3-debuginfo0:2.32.3-2.el8 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:webkit2gtk3-debugsource0:2.32.3-2.el8 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:webkit2gtk3-devel0:2.32.3-2.el8 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:webkit2gtk3-devel-debuginfo0:2.32.3-2.el8 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:webkit2gtk3-jsc0:2.32.3-2.el8 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:webkit2gtk3-jsc-debuginfo0:2.32.3-2.el8 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:webkit2gtk3-jsc-devel0:2.32.3-2.el8 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:webkit2gtk3-jsc-devel-debuginfo0:2.32.3-2.el8 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
rocky linux:accountsservice0:0.6.55-2.el8 · Rocky Linux:8Package registry (OSV)
rocky linux:gdm1:40.0-15.el8 · Rocky Linux:8Package registry (OSV)
rocky linux:gnome-autoar0:0.2.3-2.el8 · Rocky Linux:8Package registry (OSV)
rocky linux:gnome-calculator0:3.28.2-2.el8 · Rocky Linux:8Package registry (OSV)

+8

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Proof-of-concept repository on GitHub ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Proof-of-concept repository on GitHubstars:92021-10-15

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Published
  2. First PoC+37 d
  3. TodayOct 30, 2026+1878 d

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
none
Availability
none
Attack vector
Local
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
High
Integrity impact
None
Availability impact
None

Weakness class (CWE)

—

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (4 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records