CVE-2023-3614

Denial of Service via specially crafted gif image

LOW

3.3

CVSS Score

Published: July 17, 2023 at 03:32 PM UTC

Updated: June 17, 2026 at 06:14 AM UTC

2 products affected across 1 vendorMattermost ServerMattermost

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Severity

LOW3.3

Exploit prediction

EPSS 0.4%

SSVC

No known exploit

Description

Mattermost fails to properly validate a gif image file, allowing an attacker to consume a significant amount of server resources, making the server unresponsive for an extended period of time by linking to specially crafted image file.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Mattermost Server · Mattermost

95%

v < 7.8.77.10.0 ≤ v < 7.10.37.9.0 ≤ v < 7.9.5

Affected range stops below 7.10.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.8.7, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.9.5, so it looks safe — our inference, not a vendor statement

Mattermost · Mattermost

60%

v ≤ 7.10.2v ≤ 7.8.6v ≤ 7.9.4

Vendor states this is fixed in 7.10.3 (unaffected)

Vendor states this is fixed in 7.8.7 (unaffected)

Vendor states this is fixed in 7.9.5 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://mattermost.com/security-updates

References (1)

Vendor Advisory

Source: [email protected]

https://mattermost.com/security-updates

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

3.3LOW[email protected]

Attack Vector: LOCAL
Complexity: LOW
Privileges: NONE
User Interaction: REQUIRED
Scope: UNCHANGED
Confidentiality: NONE
Integrity: NONE
Availability: LOW

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-400

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