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Fencer Vulns
high 7.5

CVE-2023-20702 json

In 5G NRLC, there is a possible invalid memory access due to lack of error handling.

published 2023-11-06 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-24881

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.3%
EPSS 1.3% chance of exploitation in 30 days, percentile 70%
public exploits
0
none known

Summary

In 5G NRLC, there is a possible invalid memory access due to lack of error handling. This could lead to remote denial of service, if UE received invalid 1-byte rlc sdu, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY00921261; Issue ID: MOLY01128895.

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
2 y ago

Exploit prediction

1.30% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-08).

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:N/I:N/A:H
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

  • MediaTek, Inc. MT6835, MT6873, MT6875, MT6879, MT6883, MT6885, MT6886, MT6889, MT6895, MT6980, MT6983, MT6985, MT6990, MT8673, MT8675, MT8791, MT8791T, MT8797, MT8798
  • mediatek mt6835
  • mediatek mt6873
  • mediatek mt6875
  • mediatek mt6879
  • mediatek mt6883
  • mediatek mt6885
  • mediatek mt6886
  • mediatek mt6889
  • mediatek mt6895
  • mediatek mt6980
  • mediatek mt6983
  • mediatek mt6985
  • mediatek mt6990
  • mediatek mt8673
  • mediatek mt8675
  • mediatek mt8791
  • mediatek mt8791t
  • mediatek mt8797
  • mediatek mt8798

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.