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CVE Record

CVE-2024-9680: An attacker was able to achieve code execution in the content process by exploiting a use-after-free in Ani...

An attacker was able to achieve code execution in the content process by exploiting a use-after-free in Animation timelines. We have had reports of this vulnerability being exploited in the wild. This vulnerability affects Firefox < 131.0.2, Firefox ESR < 128.3.1, Firefox ESR < 115.16.1, Thunderbird < 131.0.1, Thunderbird < 128.3.1, and Thunderbird < 115.16.0.

CriticalCVSS 9.8Known exploitedUpdated
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Glexia's TakeSource changedcritical

Security readout for executives and security teams

Plain-English summary

CVE-2024-9680 is a critical memory-safety flaw in Mozilla Firefox and Thunderbird. Attackers have exploited it in the wild to run code inside the affected application's content process, potentially compromising sensitive information and application integrity. Unsupported or unpatched installations require urgent attention.

Executive priority

Treat as an emergency patching priority because exploitation is confirmed and code execution can affect confidentiality, integrity, and availability. Require rapid fleet-wide verification, with exceptions documented and closely monitored until remediated.

Technical view

A use-after-free vulnerability in animation timelines can enable attacker-controlled code execution within the content process. It is classified as CWE-416 and scored CVSS 9.8. Affected releases are Firefox before 131.0.2, Firefox ESR before 128.3.1 or 115.16.1, and Thunderbird before 131.0.1, 128.3.1, or 115.16.0.

Likely exposure

Exposure includes endpoints running the listed vulnerable Firefox, Firefox ESR, or Thunderbird versions. The supplied evidence does not identify specific operating systems, attack delivery methods, targeted sectors, or prerequisites beyond the affected applications.

Exploitation context

Mozilla reported exploitation in the wild, and CISA lists CVE-2024-9680 in its Known Exploited Vulnerabilities catalog. Public evidence supplied here does not establish the campaign's scale, targets, indicators, or whether exploitation consistently escaped the content-process sandbox.

Researcher notes

The supplied sources establish a use-after-free in animation timelines and content-process code execution. They do not provide enough evidence to characterize exploit mechanics, reliable indicators, campaign attribution, or standalone sandbox escape. Avoid assuming full host compromise without evidence of an additional escape or chain.

Mitigation direction

  • Update Firefox to 131.0.2 or later.
  • Update Firefox ESR to 128.3.1, 115.16.1, or a later supported release.
  • Update Thunderbird to 131.0.1, 128.3.1, 115.16.0, or a later supported release.
  • Prioritize internet-facing and high-value user endpoints.
  • Consult Mozilla and platform-vendor guidance for managed or packaged deployments.

Validation and detection

  • Inventory installed Firefox, Firefox ESR, and Thunderbird versions.
  • Confirm every installation meets the applicable fixed-version threshold.
  • Check managed-device reports for failed, deferred, or pending updates.
  • Review endpoint telemetry for suspicious browser or mail-client child-process activity.
  • Verify distribution packages contain Mozilla's correction rather than relying solely on package numbering.
Prepared
Confidence
high
Sources
5

Public sources used

The source record changed after analysis: Material source record changed after analysis.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-416: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

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description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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cve · low confidence lookup

CVE-2024-9680 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Critical
CVSS
9.8 (3.1)
Known Exploited
Yes
Published

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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
5Timeline events
2ADP providers
9Source links

CISA KEV status

Status
Known exploited
Source
CISA-ADP
Date added
KEV reference

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: activeAutomatable: yesTechnical Impact: total

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
9.8CVSS 3.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9CISA-ADP

Vulnerability scoring details

Base CVSS 3.1 score

9.8Critical
CVSS 3.1 vector shape for CVE-2024-9680Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. Added to KEVCISA-ADP

    CISA Known Exploited Vulnerabilities metadata lists this CVE as known exploited.

  4. ADP timelineCISA-ADP

    CVE-2024-9680 added to CISA KEV

  5. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
cvssV3_1other:ssvcother:kev
  • 2024-10-15T00:00:00.000Z: CVE-2024-9680 added to CISA KEV
CVECVE Program Container

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
MozillaFirefoxunspecifiedListed
MozillaFirefox ESRunspecifiedListed
MozillaFirefox ESRunspecifiedListed
MozillaThunderbirdunspecifiedListed
MozillaThunderbirdunspecifiedListed
MozillaThunderbirdunspecifiedListed
Weakness

CWE details

CWE-416

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-416 · source CWE mapping

Use After Free

Use After Free represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

Open CWE intelligenceSame-CWE CVEs