9.8

CVE-2021-40532: telegram web_k_alpha

CVSS: 9.8v3.1CriticalModified
Published 06-09-2021Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2021-40532 is a critical (CVSS 9.8) vulnerability in telegram web_k_alpha. EPSS estimates a 1.25% chance of exploitation in the next 30 days, higher than 69% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
1.25%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 06-09-2021
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

Telegram Web K Alpha before 0.7.2 mishandles the characters in a document extension.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

1.25%

Chance of exploitation in the next 30 days

Percentile

69%

Versus all other CVEs

30-day change

0.00 pp

From 1.25% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.25%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Telegram1 product

1 vendor · 1 product

References

1 links