CVE-2026-80999

UNRATEDCVSS · not yet scoredTrending — 4 sources updated this week
—
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No CVSS published and no exploitation signals yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS v2: —Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

In the Linux kernel, the following vulnerability has been resolved:

net: dsa: realtek: use gpiod_set_value_cansleep for reset GPIO

rtl83xx_reset_assert() and rtl83xx_reset_deassert() are only called from the probe path, which may sleep and is not timing-critical. When the reset GPIO is provided by a sleeping controller such as an I2C I/O expander, gpiod_set_value() warns:

WARNING: drivers/gpio/gpiolib.c:4030 at gpiod_set_value+0x44/0x80, CPU#1: kworker/u16:4/61 Hardware name: B&O MAP CA33 Rev f (UNKNOWN) (DT) Workqueue: events_unbound deferred_probe_work_func pc : gpiod_set_value+0x44/0x80 lr : rtl83xx_probe+0x1d8/0x3a0 Call trace: gpiod_set_value+0x44/0x80 (P) rtl83xx_probe+0x1d8/0x3a0 realtek_mdio_probe+0x24/0xa0 mdio_probe+0x38/0x78 really_probe+0xc4/0x3e0 __driver_probe_device+0x15c/0x1b8 driver_probe_device+0xb4/0x120 __device_attach_driver+0xb8/0x1a0 bus_for_each_drv+0x88/0xf0 __device_attach+0xa0/0x1d8 device_initial_probe+0x54/0x68 bus_probe_device+0x38/0xa0 deferred_probe_work_func+0xb8/0x120 process_one_work+0x184/0x4e8 worker_thread+0x188/0x308 kthread+0x130/0x150 ret_from_fork+0x10/0x20

Switch both helpers to gpiod_set_value_cansleep() so such a reset GPIO can be used without triggering the warning.

The reset GPIO has been driven with the non-sleeping gpiod_set_value() since the driver was added in v4.19. The call has since been refactored across several files - from realtek-smi.c / realtek-mdio.c into the common rtl83xx.c module and then into the rtl83xx_reset_assert() and rtl83xx_reset_deassert() helpers (both in v6.9). This patch therefore applies as-is only to kernels that carry those helpers (v6.9+); older stable kernels need the same gpiod_set_value_cansleep() conversion at the corresponding open-coded call sites.

CVSS v3
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EchelonGraph score
Not yet assessedNo source has published severity data for this CVE yet — no CVSS score from NVD or a CNA, no GitHub advisory, and it is not in CISA KEV. This is not a rating of zero; we cannot assess it yet.
EG Score
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EG Risk
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EPSS PROB
0.2%
EPSS %ILE
9th
KEV
Not listed

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). Where an input reads “CISA's BOD 26-04 default”, no one has published it for this CVE, and CISA's implementation guidance says: “If “Automatable” and “Technical Impact” information items about a CVE ID are not available and the CVE ID is not in the KEV Catalog, CISA will treat its values as “no” and “total,” respectively, until CISA or a third party provides metadata about the CVE ID. CISA will always provide the Vulnrichment data for a CVE ID listed in the KEV Catalog.” Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

September 11, 2026

Last Modified

September 11, 2026

References (4)

Vendor Advisories for CVE-2026-80999(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(4 across 3 ecosystems)
Debian:12(2)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 7.2~rc7-1~exp1 (360 versions)
  • every version on: no fix on record
—
linux-6.126.12.100-1~deb12u1, 6.12.101-1~deb12u1, 6.12.107-1~deb12u1
  • every version up to 6.12.111-1~deb12u1: fixed in 6.12.111-1~deb12u1
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Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 6.12.96-1 (35 versions)
  • every version up to 6.12.111-1: fixed in 6.12.111-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 7.2~rc7-1~exp1 (179 versions)
  • every version up to 7.2.6-1: fixed in 7.2.6-1
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Data Freshness Timeline

(refreshed 15× in last 7d / 52× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 1 repeat row among the latest 56 is merged into the row it repeats.

  1. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  2. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  3. 2026-10-12 14:57 UTCEG score recompute
  4. 2026-10-11 19:21 UTCEG score recompute
  5. 2026-10-11 16:37 UTCEG score recompute
  6. 2026-10-11 13:55 UTCEG score recompute
  7. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  8. 2026-10-11 06:54 UTCVendor advisory
  9. 2026-10-11 06:54 UTCGHSA enrichmentGHSA-5x4g-x6mc-9fxq
  10. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  11. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  12. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  13. 2026-10-08 07:16 UTCVendor advisory
  14. 2026-10-08 07:16 UTCGHSA enrichmentGHSA-5x4g-x6mc-9fxq
  15. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  16. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  17. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  18. 2026-10-05 09:14 UTCVendor advisory
  19. 2026-10-05 09:14 UTCGHSA enrichmentGHSA-5x4g-x6mc-9fxq
  20. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  21. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  22. 2026-10-02 17:57 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  23. 2026-10-02 11:02 UTCVendor advisory
  24. 2026-10-02 11:02 UTCGHSA enrichmentGHSA-5x4g-x6mc-9fxq
  25. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.2% · 9th percentile
Show 30 more
  1. 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  2. 2026-09-29 13:01 UTCEG score recompute
  3. 2026-09-29 13:01 UTCVendor advisory
  4. 2026-09-29 13:00 UTCGHSA enrichmentGHSA-5x4g-x6mc-9fxq
  5. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  6. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  7. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  8. 2026-09-26 14:57 UTCVendor advisory
  9. 2026-09-26 14:57 UTCGHSA enrichmentGHSA-5x4g-x6mc-9fxq
  10. 2026-09-26 00:28 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  11. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  12. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  13. 2026-09-23 15:45 UTCVendor advisory
  14. 2026-09-23 15:45 UTCGHSA enrichmentGHSA-5x4g-x6mc-9fxq
  15. 2026-09-22 16:01 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  16. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  17. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  18. 2026-09-20 17:43 UTCVendor advisory
  19. 2026-09-20 17:43 UTCGHSA enrichmentGHSA-5x4g-x6mc-9fxq
  20. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  21. 2026-09-17 19:41 UTCVendor advisory
  22. 2026-09-17 19:41 UTCGHSA enrichmentGHSA-5x4g-x6mc-9fxq
  23. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  24. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  25. 2026-09-15 03:12 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  26. 2026-09-14 18:47 UTCEG score recompute
  27. 2026-09-14 18:47 UTCGHSA enrichmentGHSA-5x4g-x6mc-9fxq
  28. 2026-09-11 20:36 UTCNVD update
  29. 2026-09-11 19:53 UTCEG score recompute
  30. 2026-09-11 19:49 UTCMITRE cvelistV5first tracked

Frequently asked(4)

What is CVE-2026-80999?
CVE-2026-80999 is a vulnerability whose severity is not yet rated; its CVE record was published on September 11, 2026. In the Linux kernel, the following vulnerability has been resolved: net: dsa: realtek: use gpiodsetvalue_cansleep for reset GPIO rtl83xxresetassert() and rtl83xxresetdeassert() are only called from the probe path, which may sleep and is not timing-critical. When the reset GPIO is provided by a…
When was the CVE record for CVE-2026-80999 published?
The CVE record for CVE-2026-80999 was published on September 11, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of September 11, 2026; the record at its source may have been updated since.
Is CVE-2026-80999 actively exploited?
CVE-2026-80999 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (9th percentile of EPSS-scored CVEs).
How do I remediate CVE-2026-80999?
A fix for CVE-2026-80999 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-80999 are linked in the Vendor Advisories panel on this page.

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