CVE-2026-53082

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-06-24. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 5 sources updated this week
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.5Exploit: None knownExposed: 0

A fix is available — apply it.

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

net: hamradio: 6pack: fix uninit-value in sixpack_receive_buf

sixpack_receive_buf() does not properly skip bytes with TTY error flags. The while loop iterates through the flags buffer but never advances the data pointer (cp), and passes the original count (including error bytes) to sixpack_decode(). This causes sixpack_decode() to process bytes that should have been skipped due to TTY errors. The TTY layer does not guarantee that cp[i] holds a meaningful value when fp[i] is set, so passing those positions to sixpack_decode() results in KMSAN reporting an uninit-value read.

Fix this by processing bytes one at a time, advancing cp on each iteration, and only passing valid (non-error) bytes to sixpack_decode(). This matches the pattern used by slip_receive_buf() and mkiss_receive_buf() for the same purpose.

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity55% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
2%
KEV
Not listed

Published

June 24, 2026

Last Modified

July 23, 2026

Advisory Details (8)

Auto-updated Jul 25, 2026
No patch confirmed yet.
generic

net: hamradio: 6pack: fix uninit-value in sixpack_receive_buf - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e9cf4018d74237d142cd66243c821d13593270f0
generic

net: hamradio: 6pack: fix uninit-value in sixpack_receive_buf - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d9ce2a4b679122397d7f35bad7be46913ad1ca80
generic

net: hamradio: 6pack: fix uninit-value in sixpack_receive_buf - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d4cceb5184538613572fb79319453f281b1eeacb
generic

net: hamradio: 6pack: fix uninit-value in sixpack_receive_buf - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/bf9a38803b2626b01cc769aaf13485d8650f576f
generic

net: hamradio: 6pack: fix uninit-value in sixpack_receive_buf - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/987af7625ceb1ee59d70eb0abd7af11c75e45d79
generic

net: hamradio: 6pack: fix uninit-value in sixpack_receive_buf - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/578f3aba427c938fecfa0d8c83d9acb213a9b24a
generic

net: hamradio: 6pack: fix uninit-value in sixpack_receive_buf - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2951656b0de00153f2687f3a093890bce72b6215
generic

net: hamradio: 6pack: fix uninit-value in sixpack_receive_buf - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1d3abf0c3ddeefc6f6d913aa129acc06fce8240a

Vendor Advisories for CVE-2026-53082(2)

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

Patch Availability(21)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-realtime-hwe-22.04 (6.8.1-1056.57~22.04.2) @ jammy2026-07-27ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1009.9) @ resolute2026-07-27ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-07-27ubuntu
ubuntulinux-tools-oracle-7.0 (7.0.0-1008.8) @ resolute2026-07-27ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1058.61) @ noble2026-07-27ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-07-27ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.15.0-1075 (5.15.0-1075.79) @ jammy2026-07-27ubuntu
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-28.28) @ resolute2026-07-27ubuntu
ubuntulinux-tools-nvidia-hwe-22.04-edge (6.8.0-1059.62~22.04.1) @ jammy2026-07-27ubuntu
ubuntulinux-tools-nvidia-lowlatency-5.15 (5.15.0.1107.107) @ jammy2026-07-27ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-07-27ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.64) @ jammy2026-07-27ubuntu
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1061.64+1) @ noble2026-07-27ubuntu
ubuntulinux-tools-azure-edge (6.8.0-1063.71~22.04.1) @ jammy2026-07-27ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-07-27ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1063.71+fips2) @ noble2026-07-27ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-07-27ubuntu
ubuntulinux-tools-oracle-lts-22.04 (5.15.0.1109.105) @ jammy2026-07-27ubuntu
ubuntulinux-tools-azure-fde-lts-22.04 (5.15.0.1117.126) @ jammy2026-07-27ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.66~20.04.1) @ focal2026-07-27ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1064.72+fips1) @ noble2026-07-27ubuntu

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(21)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 17× in last 7d / 54× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. 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. Most recent first.

  1. 2026-07-27 17:36 UTCEG score recompute
  2. 2026-07-27 17:36 UTCVendor advisory
  3. 2026-07-27 17:36 UTCGHSA enrichment
  4. 2026-07-26 15:29 UTCEG score recompute
  5. 2026-07-26 15:29 UTCVendor advisory
  6. 2026-07-26 15:29 UTCGHSA enrichment
  7. 2026-07-26 14:54 UTCEPSS rescore
  8. 2026-07-25 14:18 UTCEPSS rescore
  9. 2026-07-24 14:18 UTCEPSS rescore
  10. 2026-07-23 20:24 UTCEG score recompute▲ 5.50
  11. 2026-07-23 20:24 UTCVendor advisory
  12. 2026-07-23 20:23 UTCGHSA enrichment
  13. 2026-07-23 20:22 UTCNVD updateCVSS v3 → 5.5 · severity → MEDIUM
  14. 2026-07-23 14:18 UTCEPSS rescore
  15. 2026-07-23 03:19 UTCEG score recompute
  16. 2026-07-22 14:08 UTCEPSS rescore
  17. 2026-07-21 15:25 UTCEPSS rescore
  18. 2026-07-20 17:08 UTCEPSS rescore
  19. 2026-07-19 14:31 UTCEPSS rescore
  20. 2026-07-19 14:31 UTCEPSS rescore
  21. 2026-07-19 02:29 UTCEPSS rescore
  22. 2026-07-18 10:04 UTCEPSS rescore
  23. 2026-07-16 17:03 UTCEPSS rescore
  24. 2026-07-16 03:34 UTCVendor advisory
  25. 2026-07-16 03:34 UTCGHSA enrichment
Show 36 more
  1. 2026-07-15 16:57 UTCEPSS rescore
  2. 2026-07-15 16:57 UTCEPSS rescore
  3. 2026-07-13 06:13 UTCEPSS rescore
  4. 2026-07-13 06:13 UTCEPSS rescore
  5. 2026-07-13 02:15 UTCVendor advisory
  6. 2026-07-13 02:15 UTCGHSA enrichment
  7. 2026-07-12 05:46 UTCEPSS rescore
  8. 2026-07-10 00:56 UTCGHSA enrichment
  9. 2026-07-09 19:10 UTCEPSS rescore
  10. 2026-07-09 19:10 UTCEPSS rescore
  11. 2026-07-08 15:16 UTCEPSS rescore
  12. 2026-07-08 15:16 UTCEPSS rescore
  13. 2026-07-07 13:46 UTCEPSS rescore
  14. 2026-07-07 13:46 UTCEPSS rescore
  15. 2026-07-06 23:28 UTCGHSA enrichment
  16. 2026-07-06 16:27 UTCEPSS rescore
  17. 2026-07-06 16:27 UTCEPSS rescore
  18. 2026-07-06 02:23 UTCEPSS rescore
  19. 2026-07-06 02:23 UTCEPSS rescore
  20. 2026-07-05 02:31 UTCEPSS rescore
  21. 2026-07-05 02:30 UTCEPSS rescore
  22. 2026-07-04 06:31 UTCEPSS rescore
  23. 2026-07-03 22:09 UTCGHSA enrichment
  24. 2026-07-01 15:07 UTCEPSS rescore
  25. 2026-06-30 23:22 UTCEPSS rescore
  26. 2026-06-30 20:50 UTCGHSA enrichment
  27. 2026-06-29 14:06 UTCEPSS rescore
  28. 2026-06-29 14:06 UTCEPSS rescore
  29. 2026-06-28 14:07 UTCEPSS rescore
  30. 2026-06-28 04:56 UTCEPSS rescore
  31. 2026-06-28 04:56 UTCEPSS rescore
  32. 2026-06-27 19:32 UTCGHSA enrichment
  33. 2026-06-27 03:08 UTCEPSS rescore
  34. 2026-06-25 13:49 UTCEPSS rescore
  35. 2026-06-24 18:13 UTCEG score recompute
  36. 2026-06-24 18:03 UTCNVD updatefirst tracked

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-53082?
CVE-2026-53082 is a medium vulnerability published on June 24, 2026. In the Linux kernel, the following vulnerability has been resolved: net: hamradio: 6pack: fix uninit-value in sixpackreceivebuf sixpackreceivebuf() does not properly skip bytes with TTY error flags. The while loop iterates through the flags buffer but never advances the data pointer (cp), and…
When was CVE-2026-53082 disclosed?
CVE-2026-53082 was first published in the National Vulnerability Database on June 24, 2026, with the most recent update on July 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53082 actively exploited?
CVE-2026-53082 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 98.2% of all scored CVEs.
What is the CVSS score of CVE-2026-53082?
CVE-2026-53082 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-53082?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53082, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-53082

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