CVE-2022-22687
Published: 25 March 2022
Summary
CVE-2022-22687 is a critical-severity Classic Buffer Overflow (CWE-120) vulnerability in Synology Diskstation Manager. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 9.7% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
CVE-2022-22687 is a classic buffer overflow vulnerability, tracked as CWE-120, that exists in the authentication functionality of Synology DiskStation Manager (DSM) versions prior to 6.2.3-25426-3. The flaw stems from insufficient input-size validation during buffer copy operations and carries a CVSS 3.1 base score of 9.8.
Remote, unauthenticated attackers can exploit the issue over the network to execute arbitrary code on affected systems without user interaction. Successful exploitation grants full confidentiality, integrity, and availability impact on the target DSM instance.
The vendor advisory Synology_SA_20_26 recommends upgrading DSM to version 6.2.3-25426-3 or later to address the vulnerability. The associated EPSS score has remained flat at 0.0534 with no material increase since disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-27832
Vulnerability details
Buffer copy without checking size of input ('Classic Buffer Overflow') vulnerability in Authentication functionality in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows remote attackers to execute arbitrary code via unspecified vectors.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Platform-independent managed code eliminates the need for unchecked native buffer copies that are the root cause of classic buffer overflows.