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No exploitation reportedFix available

CVE-2019-10044

No exploitation reported by the sources we read.

  • Published2019-03-25

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Telegram Desktop before 1.5.12 on Windows, and the Telegram applications for Android, iOS, and Linux, is vulnerable to an IDN homograph attack when displaying messages containing URLs. This occurs because the application produces a clickable link even if (for example) Latin and Cyrillic characters exist in the same domain name, and the available font has an identical representation of characters from different alphabets.

Timeline

dates in UTC
  1. 2019-03-2520:29CVE publishedNVD

Versions per branch

NVD
Telegram
BranchAffectedFixed in
—all versionsno fix published
Telegram telegram desktopversion to verify
BranchAffectedFixed in
1.5< 1.5.121.5.12

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • telegram-desktopUbuntu:18.04:LTSall versions · no fixed version listed
  • telegram-desktopDebian:14all versions · fixed in 1.8.4-1
  • telegram-desktopDebian:12all versions · fixed in 1.8.4-1

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
2019-03-25
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-9gmh-43p9-37g6

Frequently asked questions

What is CVE-2019-10044?

Telegram Desktop before 1.5.12 on Windows, and the Telegram applications for Android, iOS, and Linux, is vulnerable to an IDN homograph attack when displaying messages containing URLs. This occurs because the application produces a clickable link even if (for example) Latin and Cyrillic characters exist in the same domain name, and the available font has an identical representation of characters from different alphabets.

Is CVE-2019-10044 actively exploited?

Active exploitation of CVE-2019-10044 has not been confirmed. Its EPSS score was 3.3% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-10044?

CVE-2019-10044 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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