Cyber Resilience

CVE-2021-31319

MediumPublic PoC

Published: 18 May 2021

Published
18 May 2021
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS Score 0.0015 35.8th percentile
Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-31319 is a medium-severity Integer Overflow or Wraparound (CWE-190) vulnerability in Telegram Telegram. Its CVSS base score is 5.5 (Medium).

Operationally, ranked at the 35.8th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

Telegram Android <7.1.0 (2090), Telegram iOS <7.1, and Telegram macOS <7.1 are affected by an Integer Overflow in the LOTGradient::populate function of their custom fork of the rlottie library. A remote attacker might be able to access heap memory out-of-bounds…

more

on a victim device via a malicious animated sticker.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

telegram
telegram
≤ 7.1.0 · ≤ 7.1.0 · ≤ 7.1.0

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References