CVE-2018-3986

lowpriority · track · 22EPSS 0.004 · 37 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.43% (37th) EPSS

CVSS 2.1 · low

Is it mine?

2 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-28

An exploitable information disclosure vulnerability exists in the "Secret Chats" functionality of the Telegram Android messaging application version 4.9.0. The "Secret Chats" functionality allows a user to delete all traces of a chat, either by using a time trigger or by direct request. There is a bug in this functionality that leaves behind photos taken and shared on the secret chats, even after the chats are deleted. These photos will be stored in the device and accessible to all applications installed on the Android device.

cvss

Technical severity, 0–10. One row per scoring source.

5.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 2.1–5.5

v2.02.1lowAV:L/AC:L/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 2.9

v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 1.8 · impact 3.6

v3.04.2mediumCVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:Nsecondary · ENISA EU

v3.04.2mediumCVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:Nsecondary · talos-cna@cisco.com USexploitability 0.6 · impact 3.6

v3.15.1mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-200USprimary

affected products (2)

Products and version ranges known to be affected.

n/a Telegram≤ Telegram Messaging Application for Android 4.9.0enisa_euvdEU
telegram telegram= 4.9.0nvdUScpe:2.3:a:telegram:telegram:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2019-01-03modified 2026-06-17

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+19464 more

references (7)

External citations — patches, advisories, analysis.

https://talosintelligence.com/vulnerability_reports/TALOS-2018-0654 cnnvd
https://www.securityfocus.com/bid/106295 cnnvd
https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0654 cnnvd
http://www.securityfocus.com/bid/106295 enisa_euvd
https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0654 enisa_euvd
http://www.securityfocus.com/bid/106295Broken LinkThird Party AdvisoryVDB Entrynvd
https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0654ExploitThird Party Advisorynvd

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