7.8

CVE-2026-74648: linux

CVSS: 7.8v3.1HighReceived
AliasesUBUNTU-CVE-2026-74648DEBIAN-CVE-2026-74648
Published 22-08-2026Last modified 16-10-2026
Open JSON

Vulnerability summary

CVE-2026-74648 is a high (CVSS 7.8) vulnerability in linux. EPSS estimates a 0.13% chance of exploitation in the next 30 days, higher than 2.2% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.13%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 7 · Related 6
MGASA-2026-0506USN-8875-1USN-8875-2USN-8877-1USN-8878-1USN-8879-1

Timeline

  1. 22-08-2026
    PublishedVulnerability first disclosed.
  2. 16-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: validate monitor transmit frame lengths rtw_cfg80211_monitor_if_xmit_entry() removes the radiotap header and then reads the 802.11 frame control field without checking that a base 802.11 header remains. The data path also pulls the calculated 802.11, QoS and SNAP header span before confirming that the skb contains it. A truncated frame can therefore cause out-of-bounds reads or leave insufficient data for the Ethernet address writes. Reject frames that do not contain the base 802.11 header and data frames that do not contain their complete calculated header span.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.13%

Chance of exploitation in the next 30 days

Percentile

2%

Versus all other CVEs

30-day change

0.00 pp

From 0.13% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.13%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu168 products
  • linuxAll versions (No fix recorded) | < 5.15.0-198.208
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1117.124
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
  • linux< 6.1.187-1 | < 6.12.105-1 | < 7.1.9-1
  • linux-6.12< 6.12.107-1~deb12u1
Linux1 product
  • linux≥ 554c0a3abf216c991c5ebddcdb2c08689ecd290b, < f03398d835f5249c49546f0eb0d0df6792b95d5f | ≥ 554c0a3abf216c991c5ebddcdb2c08689ecd290b, < a3ac6d849de5f7abe14761d741bbb843ac793454 | ≥ 554c0a3abf216c991c5ebddcdb2c08689ecd290b, < 7edd3adb0c80d70b4237640275c559610f438476 | ≥ 554c0a3abf216c991c5ebddcdb2c08689ecd290b, < c5e5d78743992e235b76d2ebe5a403d60315aa8a | ≥ 554c0a3abf216c991c5ebddcdb2c08689ecd290b, < 7b0f62d2986a28e5e4188366bc2f4e2868b14790 | ≥ 554c0a3abf216c991c5ebddcdb2c08689ecd290b, < 8b3e4ed9c35d3d3b64fcc23f4a1f22b37c1865b1 | ≥ 554c0a3abf216c991c5ebddcdb2c08689ecd290b, < bd88f6289b7e483216a9c1df15a0460ef9b02cb6 | ≥ 554c0a3abf216c991c5ebddcdb2c08689ecd290b, < 6829665d050983907b560173e49dcc6c11cb2730 | 4.12

3 vendors · 171 products

References

17 links
Show all 17 references