How severe is CVE-2023-0077?

CVE-2023-0077 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability low.

Is CVE-2023-0077 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-0077?

CVE-2023-0077 affects Synology Router Manager. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-0077?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-0077 published?

CVE-2023-0077 was published on 2023-01-05 and last updated on 2026-06-17.

CVE-2023-0077

CVE-2023-0077 is a medium-severity vulnerability in Synology Router Manager with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Synology Router Manager
Published: 2023-01-05
Last modified: 2026-06-17

Description

Integer overflow or wraparound vulnerability in CGI component in Synology Router Manager (SRM) before 1.2.5-8227-6 and 1.3.1-9346-3 allows remote attackers to overflow buffers via unspecified vectors.

Frequently asked questions

What is CVE-2023-0077?: Integer overflow or wraparound vulnerability in CGI component in Synology Router Manager (SRM) before 1.2.5-8227-6 and 1.3.1-9346-3 allows remote attackers to overflow buffers via unspecified vectors.
How severe is CVE-2023-0077?: CVE-2023-0077 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability low.
Is CVE-2023-0077 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-0077?: CVE-2023-0077 affects Synology Router Manager. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-0077?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-0077 published?: CVE-2023-0077 was published on 2023-01-05 and last updated on 2026-06-17.

References

https://www.synology.com/en-global/security/advisory/Synology_SA_22_25

Affected products (1)

cpe:2.3:a:synology:router_manager:*:*:*:*:*:*:*:*

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