Incorrect default permissions in Synology Router Manager
Priority LOW 27CWE-276Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
Incorrect default permissions vulnerability in firewall functionality in Synology Router Manager (SRM) before 1.2.5-8227-11 and 1.3.1-9346-8 allows man-in-the-middle attackers to access highly sensitive intranet resources via unspecified vectors.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00523 44th percentileScored 2026-11-07
Fix Fixed Synology Router Manager (SRM) (Synology): 1.3.1-9346-8, 1.2.5-8227-11
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Synology | Synology Router Manager (SRM) | 1.3 to before 1.3.1-9346-8; 1.2 to before 1.2.5-8227-11 | 1.3.1-9346-8, 1.2.5-8227-11 | Patch available | CNA |
- Synology Router Manager (SRM) VendorSynology Affected 1.3 to before 1.3.1-9346-8; 1.2 to before 1.2.5-8227-11 Fixed in 1.3.1-9346-8, 1.2.5-8227-11 Patch available CNA
CPE configurations NVD · 20
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:synology:router_manager:*:*:*:*:*:*:*:* | 1.2 to before 1.2.5-8227; 1.3 to before 1.3.1-9346 | Vulnerable | Synology |
| cpe:2.3:o:synology:router_manager:1.2.5-8227:-:*:*:*:*:*:* | 1.2.5-8227 | Vulnerable | Synology |
| cpe:2.3:o:synology:router_manager:1.2.5-8227:update1:*:*:*:*:*:* | 1.2.5-8227 update1 | Vulnerable | Synology |
| cpe:2.3:o:synology:router_manager:1.2.5-8227:update10:*:*:*:*:*:* | 1.2.5-8227 update10 | Vulnerable | Synology |
| cpe:2.3:o:synology:router_manager:1.2.5-8227:update2:*:*:*:*:*:* | 1.2.5-8227 update2 | Vulnerable | Synology |
| cpe:2.3:o:synology:router_manager:1.2.5-8227:update3:*:*:*:*:*:* | 1.2.5-8227 update3 | Vulnerable | Synology |
| cpe:2.3:o:synology:router_manager:1.2.5-8227:update4:*:*:*:*:*:* | 1.2.5-8227 update4 | Vulnerable | Synology |
| cpe:2.3:o:synology:router_manager:1.2.5-8227:update5:*:*:*:*:*:* | 1.2.5-8227 update5 | Vulnerable | Synology |
| cpe:2.3:o:synology:router_manager:1.2.5-8227:update6:*:*:*:*:*:* | 1.2.5-8227 update6 | Vulnerable | Synology |
| cpe:2.3:o:synology:router_manager:1.2.5-8227:update7:*:*:*:*:*:* | 1.2.5-8227 update7 | Vulnerable | Synology |
- cpe:2.3:o:synology:router_manager:*:*:*:*:*:*:*:* Versions 1.2 to before 1.2.5-8227; 1.3 to before 1.3.1-9346 Vulnerable ·Synology
- cpe:2.3:o:synology:router_manager:1.2.5-8227:-:*:*:*:*:*:* Versions 1.2.5-8227 Vulnerable ·Synology
- cpe:2.3:o:synology:router_manager:1.2.5-8227:update1:*:*:*:*:*:* Versions 1.2.5-8227 update1 Vulnerable ·Synology
- cpe:2.3:o:synology:router_manager:1.2.5-8227:update10:*:*:*:*:*:* Versions 1.2.5-8227 update10 Vulnerable ·Synology
- cpe:2.3:o:synology:router_manager:1.2.5-8227:update2:*:*:*:*:*:* Versions 1.2.5-8227 update2 Vulnerable ·Synology
- cpe:2.3:o:synology:router_manager:1.2.5-8227:update3:*:*:*:*:*:* Versions 1.2.5-8227 update3 Vulnerable ·Synology
- cpe:2.3:o:synology:router_manager:1.2.5-8227:update4:*:*:*:*:*:* Versions 1.2.5-8227 update4 Vulnerable ·Synology
- cpe:2.3:o:synology:router_manager:1.2.5-8227:update5:*:*:*:*:*:* Versions 1.2.5-8227 update5 Vulnerable ·Synology
- cpe:2.3:o:synology:router_manager:1.2.5-8227:update6:*:*:*:*:*:* Versions 1.2.5-8227 update6 Vulnerable ·Synology
- cpe:2.3:o:synology:router_manager:1.2.5-8227:update7:*:*:*:*:*:* Versions 1.2.5-8227 update7 Vulnerable ·Synology
Show 10 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:synology:router_manager:1.2.5-8227:update8:*:*:*:*:*:* | 1.2.5-8227 update8 | Vulnerable | Synology |
| cpe:2.3:o:synology:router_manager:1.2.5-8227:update9:*:*:*:*:*:* | 1.2.5-8227 update9 | Vulnerable | Synology |
| cpe:2.3:o:synology:router_manager:1.3.1-9346:-:*:*:*:*:*:* | 1.3.1-9346 | Vulnerable | Synology |
| cpe:2.3:o:synology:router_manager:1.3.1-9346:update1:*:*:*:*:*:* | 1.3.1-9346 update1 | Vulnerable | Synology |
| cpe:2.3:o:synology:router_manager:1.3.1-9346:update2:*:*:*:*:*:* | 1.3.1-9346 update2 | Vulnerable | Synology |
| cpe:2.3:o:synology:router_manager:1.3.1-9346:update3:*:*:*:*:*:* | 1.3.1-9346 update3 | Vulnerable | Synology |
| cpe:2.3:o:synology:router_manager:1.3.1-9346:update4:*:*:*:*:*:* | 1.3.1-9346 update4 | Vulnerable | Synology |
| cpe:2.3:o:synology:router_manager:1.3.1-9346:update5:*:*:*:*:*:* | 1.3.1-9346 update5 | Vulnerable | Synology |
| cpe:2.3:o:synology:router_manager:1.3.1-9346:update6:*:*:*:*:*:* | 1.3.1-9346 update6 | Vulnerable | Synology |
| cpe:2.3:o:synology:router_manager:1.3.1-9346:update7:*:*:*:*:*:* | 1.3.1-9346 update7 | Vulnerable | Synology |
- cpe:2.3:o:synology:router_manager:1.2.5-8227:update8:*:*:*:*:*:* Versions 1.2.5-8227 update8 Vulnerable ·Synology
- cpe:2.3:o:synology:router_manager:1.2.5-8227:update9:*:*:*:*:*:* Versions 1.2.5-8227 update9 Vulnerable ·Synology
- cpe:2.3:o:synology:router_manager:1.3.1-9346:-:*:*:*:*:*:* Versions 1.3.1-9346 Vulnerable ·Synology
- cpe:2.3:o:synology:router_manager:1.3.1-9346:update1:*:*:*:*:*:* Versions 1.3.1-9346 update1 Vulnerable ·Synology
- cpe:2.3:o:synology:router_manager:1.3.1-9346:update2:*:*:*:*:*:* Versions 1.3.1-9346 update2 Vulnerable ·Synology
- cpe:2.3:o:synology:router_manager:1.3.1-9346:update3:*:*:*:*:*:* Versions 1.3.1-9346 update3 Vulnerable ·Synology
- cpe:2.3:o:synology:router_manager:1.3.1-9346:update4:*:*:*:*:*:* Versions 1.3.1-9346 update4 Vulnerable ·Synology
- cpe:2.3:o:synology:router_manager:1.3.1-9346:update5:*:*:*:*:*:* Versions 1.3.1-9346 update5 Vulnerable ·Synology
- cpe:2.3:o:synology:router_manager:1.3.1-9346:update6:*:*:*:*:*:* Versions 1.3.1-9346 update6 Vulnerable ·Synology
- cpe:2.3:o:synology:router_manager:1.3.1-9346:update7:*:*:*:*:*:* Versions 1.3.1-9346 update7 Vulnerable ·Synology
Remediation
- Fix · CNA Synology Router Manager (SRM) (Synology) Fixed in 1.3.1-9346-8, 1.2.5-8227-11
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
Synology Router Manager (SRM) — Synology-SA-23:16 SRM (PWN2OWN 2023)
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2024-26301 Download of code without integrity check vulnerability in AirPrint functionality in…Priority LOW 34
Timeline
- 2026-10-02 Threatist record created from CVE-2024-39347
- 2026-10-03 Alias added: GHSA-fp5r-m92v-wrwr
References
Advisory 1
More Synology Router Manager vulnerabilities
- TI-2018-01076 Out-of-bounds write in Netatalk CVSS 3.1CRITICAL 9.8
- TI-2017-10594 Heap-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cause a… CVSS 3.1CRITICAL 9.8
- TI-2017-03716 Observable discrepancy in Intel Most Modern Operating Systems CVSS 3.1MEDIUM 5.6
- TI-2023-16144 Improper neutralization of special elements used in an OS command ('OS Command… CVSS 3.1CRITICAL 9.8
- TI-2023-00073 Integer overflow or wraparound vulnerability in CGI component in Synology Router Manager… CVSS 3.1CRITICAL 9.8
- TI-2020-16769 Improper privilege management in Synology Router Manager CVSS 3.1CRITICAL 9.8
Sources
- CVE-2024-39347 · CVE Program
- CVE-2024-39347 · NVD
- FIRST EPSS
- GHSA-fp5r-m92v-wrwr · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences