CVE-2026-74680: linux

CVSS: UnknownReceived
AliasesUBUNTU-CVE-2026-74680DEBIAN-CVE-2026-74680
Published 22-08-2026Last modified 22-08-2026
Open JSON

Vulnerability summary

CVE-2026-74680 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.18% chance of exploitation in the next 30 days, higher than 6.8% of scored vulnerabilities.

Overall risk
0/100
0100
Minimal · default modelHow is this calculated?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
0.18%
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 6 · Related 5
MGASA-2026-0506USN-8875-1USN-8875-2USN-8877-1USN-8878-1USN-8879-1

Timeline

  1. 22-08-2026
    PublishedVulnerability first disclosed.

Description

In the Linux kernel, the following vulnerability has been resolved: usb: atm: cxacru: properly kill rcv_urb on error in cxacru_cm() If cxacru_cm() encounters an error while submitting or waiting for snd_urb, it aborts and returns the error without killing the already submitted rcv_urb. This leaves the rcv_urb active. When this happens during initialization (e.g., in cxacru_atm_start()), the driver may ignore the error and proceed to call cxacru_poll_status(), which invokes cxacru_cm() again. Attempting to submit the still-active rcv_urb triggers a warning in usb_submit_urb(): cxacru 1-1:1.0: send of cm 0x84 failed (-104) ATM dev 0: cxacru_atm_start: CHIP_ADSL_LINE_START returned -104 ------------[ cut here ]------------ URB ffff88812658d200 submitted while active WARNING: drivers/usb/core/urb.c:379 at usb_submit_urb+0x79/0x18b0 drivers/usb/core/urb.c:379 ... Call Trace: <TASK> cxacru_cm+0x21a/0xf10 drivers/usb/atm/cxacru.c:631 cxacru_cm_get_array drivers/usb/atm/cxacru.c:722 [inline] cxacru_poll_status+0x178/0x1110 drivers/usb/atm/cxacru.c:828 cxacru_atm_start+0x185/0x360 drivers/usb/atm/cxacru.c:814 usbatm_atm_init+0x144/0x3a0 drivers/usb/atm/usbatm.c:927 usbatm_usb_probe+0x15cb/0x1db0 drivers/usb/atm/usbatm.c:1178 cxacru_usb_probe+0x17f/0x220 drivers/usb/atm/cxacru.c:1370 ... To fix this, ensure that rcv_urb is properly killed if cxacru_cm() aborts early. We can safely call usb_kill_urb() on rcv_urb in the error path, as it is safe to call even if the URB is not active (e.g., if it failed to submit in the first place, or if it already completed).

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.18%

Chance of exploitation in the next 30 days

Percentile

7%

Versus all other CVEs

30-day change

0.00 pp

From 0.18% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.18%

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

Ubuntu169 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≥ 1b0e614652344a2d39eb336f3dc07651782883bf, < 6133b461058316e3ccba7331f974d110d4c08b23 | ≥ 1b0e614652344a2d39eb336f3dc07651782883bf, < 61093d7f1144f6a15bac505df35e5f535ade2ac1 | ≥ 1b0e614652344a2d39eb336f3dc07651782883bf, < 645d98dbccdbfdbf0129f48822af7183492de091 | ≥ 1b0e614652344a2d39eb336f3dc07651782883bf, < 993f7677949e3d72e360e86eed1f41c2511f75ed | ≥ 1b0e614652344a2d39eb336f3dc07651782883bf, < 939b6a41f681aea52af678053072ee443068e93e | ≥ 1b0e614652344a2d39eb336f3dc07651782883bf, < 2f73a065791d2a8e3f0bdf29248e33600359e865 | ≥ 1b0e614652344a2d39eb336f3dc07651782883bf, < 0af047703dbed8224552587ed436f14a24371b46 | ≥ 1b0e614652344a2d39eb336f3dc07651782883bf, < c2f811314be351d86b6ab41e9297ae80d8da6f86 | 2.6.13

3 vendors · 172 products

References

17 links
Show all 17 references