7.8

CVE-2025-68819: media: dvb-usb: dtv5100: fix out-of-bounds in dtv5100_i2c_msg()

Deferred
AliasesUBUNTU-CVE-2025-68819DEBIAN-CVE-2025-68819
Published 13-01-2026Last modified 19-10-2026

Vulnerability summary

CVE-2025-68819 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in linux. EPSS estimates a 0.15% chance of exploitation in the next 30 days, higher than 4.6% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.15%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 47 · Related 43
DLA-4475-1DLA-4476-1DSA-6126-1DSA-6127-1MGASA-2026-0017MGASA-2026-0018

Timeline

  1. 13-01-2026
    PublishedVulnerability first disclosed.
  2. 19-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: media: dvb-usb: dtv5100: fix out-of-bounds in dtv5100_i2c_msg() rlen value is a user-controlled value, but dtv5100_i2c_msg() does not check the size of the rlen value. Therefore, if it is set to a value larger than sizeof(st->data), an out-of-bounds vuln occurs for st->data. Therefore, we need to add proper range checking to prevent this vuln.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.15%

Chance of exploitation in the next 30 days

Percentile

5%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.15% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu156 products
  • linuxAll versions (No fix recorded) | < 5.15.0-173.183 | < 6.8.0-110.110 | < 6.17.0-22.22
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1103.110 | < 6.8.0-1052.55 | < 6.17.0-1012.12
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.162-1 | < 6.12.69-1 | < 6.18.3-1
Linux1 product
  • linux≥ 60688d5e6e6e2ae62f29762d1e3b2aec2dbd3817, < c2c293ea7b61f12cdaad1e99a5b4efc58c88960a | ≥ 60688d5e6e6e2ae62f29762d1e3b2aec2dbd3817, < c2305b4c5fc15e20ac06c35738e0578eb4323750 | ≥ 60688d5e6e6e2ae62f29762d1e3b2aec2dbd3817, < 61f214a878e96e2a8750bf96a98f78c658dba60c | ≥ 60688d5e6e6e2ae62f29762d1e3b2aec2dbd3817, < 4a54d8fcb093761e4c56eb211cf4e39bf8401fa1 | ≥ 60688d5e6e6e2ae62f29762d1e3b2aec2dbd3817, < fe3e129ab49806aaaa3f22067ebc75c2dfbe4658 | ≥ 60688d5e6e6e2ae62f29762d1e3b2aec2dbd3817, < ac92151ff2494130d9fc686055d6bbb9743a673e | ≥ 60688d5e6e6e2ae62f29762d1e3b2aec2dbd3817, < b91e6aafe8d356086cc621bc03e35ba2299e4788 | 2.6.28

3 vendors · 158 products

References

41 links
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