How severe is CVE-2017-12077?

CVE-2017-12077 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2017-12077 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-12077?

CVE-2017-12077 affects Synology Router Manager. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-12077?

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

When was CVE-2017-12077 published?

CVE-2017-12077 was published on 2017-08-28 and last updated on 2026-06-17.

CVE-2017-12077

CVE-2017-12077 is a medium-severity vulnerability in Synology Router Manager with a CVSS 3.x base score of 4.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-400.

Key facts

Severity: Medium (CVSS 3.x base score 4.9)
CVSS v2: 4.0
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-400
Affected product: Synology Router Manager
Published: 2017-08-28
Last modified: 2026-06-17

Description

Uncontrolled Resource Consumption vulnerability in SYNO.Core.PortForwarding.Rules in Synology Router Manager (SRM) before 1.1.4-6509 allows remote authenticated attacker to exhaust the memory resources of the machine, causing a denial of service attack.

Frequently asked questions

What is CVE-2017-12077?: Uncontrolled Resource Consumption vulnerability in SYNO.Core.PortForwarding.Rules in Synology Router Manager (SRM) before 1.1.4-6509 allows remote authenticated attacker to exhaust the memory resources of the machine, causing a denial of service attack.
How severe is CVE-2017-12077?: CVE-2017-12077 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2017-12077 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-12077?: CVE-2017-12077 affects Synology Router Manager. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-12077?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-12077 published?: CVE-2017-12077 was published on 2017-08-28 and last updated on 2026-06-17.

References

https://www.synology.com/en-global/support/security/Synology_SA_17_49_SRM

Affected products (1)

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

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