Dashboard / CVE-2026-126546

CVE-2026-126546

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 61/100
Published: 2026-11-11 Modified: 2026-11-14 First seen: 2026-11-11 Status: active

Attack Surface

Network Low Complexity No Auth

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: Passive
S: X
AT: None
VC: None
VI: None
VA: Low

Description

Viber for iOS through 29.4.0.24 fails to validate the logical screen width and height in received GIF headers, allowing attackers to crash the app. Attackers can send a crafted GIF with zero dimensions that triggers an uncaught NSInternalInconsistencyException, aborting the app with SIGABRT when opened.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
Rakuten Viber Viber for iOS 0
Rakuten Viber Viber for iOS 0

References & Advisories (3)

Bug Bounty Relevance

61 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

5.3 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.30%
Raw Score 0.002960
Percentile 22.5%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00296
2026-11-12
0.00296

Intelligence Sources

mitre ref →
nvd ref →

External Links