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CVE mentions, exploit signals, and PoC evidence in one fast public view.

CVE detail

CVE-2021-44731

A race condition existed in the snapd 2.54.2 snap-confine binary when preparing a private mount namespace for a snap. This could allow a local attacker to gain root privileges by bind-mounting their own contents inside the snap's private mount namespace and causing snap-confine to execute arbitrary code and hence gain privilege escalation. Fixed in snapd versions 2.54.3+18.04, 2.54.3+20.04 and 2.54.3+21.10.1

CVSS 7.8 · HighBuzz score 25.9

Buzz score

Why this CVE is surfacing

Buzz score total 25.9

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 17.9 · diversity 8.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Mention score
17.9
5 evidence mentions in the snapshot
Diversity score
8.0
3 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
0
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
5 source links · newest first
  • A new Linux flaw can be chained with other two bugs to gain full root privilegesSecurity Affairs

    Qualys researchers demonstrated how to chain a new Linux flaw with two other two issues to gain full root privileges on an impacted system. Researchers at the Qualys’ Threat Research Unit demonstrated how to chain a new Linux vulnerability, tracked as CVE-2022-3328, with two other flaws to gain full root privileges on an affected system. The […]

    newssecurityaffairs.comDec 3, 2022, 12:13 AM
  • Three Innocuous Linux Vulnerabilities Chained to Obtain Full Root PrivilegesSecurityWeek

    Qualys’ Threat Research Unit has shown how a new Linux vulnerability could be chained with two other apparently harmless flaws to gain full root privileges on an affected system.

    newswww.securityweek.comDec 2, 2022, 3:23 PM
  • Security Affairs newsletter Round 354Security Affairs

    A new round of the weekly Security Affairs newsletter arrived! Every week the best security articles from Security Affairs free for you in your email box. If you want to also receive for free the newsletter with the international press subscribe here. CISA compiled a list of free cybersecurity tools and services White House and UK […]

    newssecurityaffairs.comFeb 20, 2022, 9:59 AM
  • Dangerous privilege escalation bugs found in Linux package manager SnapCSO Online

    Researchers found an easy-to-exploit vulnerability in Snap, a universal application packaging and distribution system developed for Ubuntu but available on multiple Linux distributions. The flaw allows a low-privileged user to execute malicious code as root, the highest administrative account on Linux. The vulnerability, tracked as CVE-2021-44731, is part of a series of flaws that researchers […]

    newswww.csoonline.comFeb 18, 2022, 2:30 PM
  • CVE-2021-44731 Linux privilege escalation bug affects Canonical’s Snap Package ManagerSecurity Affairs

    Qualys experts found a new Linux privilege escalation vulnerability, tracked as CVE-2021-44731, in Canonical’s Snap Package Manager. Canonical’s Snap software packaging and deployment system are affected by multiple vulnerabilities, including a privilege escalation flaw tracked as CVE-2021-44731 (CVSS score 7.8). Snap is a software packaging and deployment system developed by Canonical for operating systems that use the Linux […]

    newssecurityaffairs.comFeb 18, 2022, 9:47 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.

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