Trending
CVE-2021-27205

CVE detail

CVE-2021-27205

Telegram before 7.4 (212543) Stable on macOS stores the local copy of self-destructed messages in a sandbox path, leading to sensitive information disclosure.

CVSS 5.5 · MediumBuzz score 11.9

Buzz score

Why this CVE is surfacing

Buzz score total 11.9

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 6.9 · diversity 5.0 · KEV 0.0 · OTX 0.0 · PoC 0.0

Mention score

6.9

1 evidence mentions in the snapshot

Diversity score

5.0

1 sources across 1 categories

KEV score

0.0

No KEV entry observed

OTX score

0.0

0 OTX pulses

PoC score

0.0

0 repos · best confidence N/A

Best PoC traction

Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions: 0; within the 30d window
Peak daily: 0; highest bucket

Evidence

Source links by recency

Newest mentions first

1 source links · newest first

The “P” in Telegram stands for PrivacySecurity Affairs
Security expert Dhiraj Mishra analyzed the popular instant messaging app Telegram and identified some failures in terms of handling the users’ data. Summary: While understanding the implementation of various security and privacy measures in Telegram, I identified that telegram fails again in terms of handling the users data. My initial study started with understanding how self-destructing […]
newssecurityaffairs.comFeb 12, 2021, 10:45 AM

Exploit code

Public exploit repository references

Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.

0 repository references · best confidence N/A · max 0 stars

No public PoC repositories have been matched yet.

Related records

Similar CVEs

6 related CVEs with shared weakness or product evidence

CVE-2021-27204
Telegram before 7.4 (212543) Stable on macOS stores the local passcode in cleartext, leading to information disclosure.
CVSS 5.5 · Medium
1 mention
CVE-2023-44153
Sensitive information disclosure due to cleartext storage of sensitive information in memory. The following products are affected: Acronis Cyber Protect 15 (Linux, macOS, Windows)…
CVSS 7.5 · High
CVE-2022-22478
IBM Spectrum Protect Client 8.1.0.0 through 8.1.14.0 stores user credentials in plain clear text which can be read by a local user. IBM X-Force ID: 225886.
CVSS 5.5 · Medium
CVE-2021-23827
Keybase Desktop Client before 5.6.0 on Windows and macOS, and before 5.6.1 on Linux, allows an attacker to obtain potentially sensitive media (such as private pictures) in the Cac…
CVSS 5.5 · Medium
CVE-2018-1882
In a certain atypical IBM Spectrum Protect 7.1 and 8.1 configurations, the node password could be displayed in plain text in the IBM Spectrum Protect client trace file. IBM X-Forc…
CVSS 4.7 · Medium
CVE-2026-55985
The web management interface in Tycon Systems TPDIN-Monitor-WEB2 stores and displays system credentials in cleartext on a certain configuration page accessible to authenticated…
CVSS 5.3 · Medium
3 mentions

External lookup

Potential internet exposure

Potential exposure only — not proof of vulnerability.Shodan results indicate potentially internet-exposed products, not confirmed vulnerable systems. They do not confirm that any returned system is vulnerable to CVE-2021-27205.

Product-level CPE searches intentionally omit version fields and NVD version-range or configuration certainty. Verify the exact product version and configuration independently.

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Product CPE queries

Derived from this CVE's existing NVD CPE 2.3 records; the application, operating-system, or hardware part is retained.

cpe:2.3:o:apple:macosSearch this product on Shodan
cpe:2.3:a:telegram:telegramSearch this product on Shodan

Exact CVE query

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Shodan's exact vuln: filter is separate from the product searches above and requires an eligible paid Shodan plan.

vuln:CVE-2021-27205Search this CVE on Shodan

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Metadata

Canonical fields

NVD status

Unavailable

Published

Feb 12, 2021

Modified

Jun 17, 2026

Official record

Authoritative NVD record

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CWE IDs

Vendor classifications

How this vector reads

CVSS 3.1 base metrics decoded below. This explanation does not recalculate or change the NVD score.

Attack Vector (AV): Local. The attacker needs local access to the vulnerable system.
Attack Complexity (AC): Low. No special conditions beyond the attacker-controlled steps are required.
Privileges Required (PR): Low. The attacker needs basic user-level privileges.
User Interaction (UI): None. Exploitation does not require another user to act.
Scope (S): Unchanged. Impacts remain within the vulnerable security authority.
Confidentiality Impact (C): High. There is a total or serious impact to this security property.
Integrity Impact (I): None. There is no direct impact to this security property.
Availability Impact (A): None. There is no direct impact to this security property.

Signals

Exploitation indicators

0 stored signals · no KEV · 0 OTX pulses