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Fencer Vulns
high 7.5

CVE-2023-31474 json

An issue was discovered on GL.iNet devices before 3.216.

published 2023-05-09 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-35779

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 57%
public exploits
0
none known

Summary

An issue was discovered on GL.iNet devices before 3.216. Through the software installation feature, it is possible to inject arbitrary parameters in a request to cause opkg to obtain a list of files in a specific directory, by using the regex feature in a package name.

Patch / fix

  • gl-inet gl-s20_firmware 3.216
  • gl-inet gl-x3000_firmware 3.216
  • gl-inet gl-mt3000_firmware 3.216
  • gl-inet gl-mt2500_firmware 3.216
  • gl-inet gl-mt2500a_firmware 3.216
  • gl-inet gl-axt1800_firmware 3.216
  • gl-inet gl-a1300_firmware 3.216
  • gl-inet gl-ax1800_firmware 3.216
  • gl-inet gl-sft1200_firmware 3.216
  • gl-inet gl-mt1300_firmware 3.216
  • gl-inet gl-e750_firmware 3.216
  • gl-inet gl-mv1000_firmware 3.216
  • gl-inet gl-mv1000w_firmware 3.216
  • gl-inet gl-s10_firmware 3.216
  • gl-inet gl-s200_firmware 3.216
  • gl-inet gl-s1300_firmware 3.216
  • gl-inet gl-sf1200_firmware 3.216
  • gl-inet gl-b1300_firmware 3.216
  • gl-inet gl-b2200_firmware 3.216
  • gl-inet gl-ap1300_firmware 3.216

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
21 mo ago

Exploit prediction

0.82% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/gl-inet/CVE-issues/blob/main/3.215/Directory_Listing.md referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.