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

CVE detail

CVE-2021-31439

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Synology DiskStation Manager. Authentication is not required to exploit this vulnerablity. The specific flaw exists within the processing of DSI structures in Netatalk. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-12326.

CVSS 8.8 · HighBuzz score 21.9

Buzz score

Why this CVE is surfacing

Buzz score total 21.9

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 13.9 · diversity 8.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Mention score
13.9
3 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
3 source links · newest first
  • Synology, QNAP, WD Warn Users About Vulnerabilities Exploited at Hacking ContestSecurityWeek

    Synology, QNAP and Western Digital (WD) have warned their customers about several critical Netatalk vulnerabilities that have been exploited at a recent hacking contest.

    newswww.securityweek.comApr 29, 2022, 11:15 AM
  • Critical vulnerabilities open Synology, QNAP NAS devices to attackHelp Net Security

    Users of Synology and QNAP network-attached storage (NAS) devices are advised to be on the lookout for patches for several critical vulnerabilities affecting Netatalk, an open-source implemention of the Apple Filing Protocol (AFP) that allows Unix-like operating systems to serve file servers for Macs. There is no indication that they are currently being exploited by attackers in the wild, but until patches are made available, users should implement mitigations delineated by the companies. About the … More →

    newswww.helpnetsecurity.comApr 29, 2022, 9:26 AM
  • Hurry up, disable AFP on your QNAP NAS until the vendor fixes 8 bugsSecurity Affairs

    QNAP urges customers to disable the AFP file service protocol on their NAS devices until it fixes critical Netatalk flaws. Taiwanese vendor QNAP is warning customers to disable the AFP file service protocol on their network-attached storage (NAS) deviced until it fixes several critical Netatalk vulnerabilities. Netatalk is a free, open-source implementation of the Apple Filing Protocol that allows Unix-like operating systems […]

    newssecurityaffairs.comApr 29, 2022, 6:59 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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