CVE-2024-58069: rtc: pcf85063: fix potential OOB write in PCF85063 NVMEM read
Vulnerability summary
CVE-2024-58069 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in linux. EPSS estimates a 0.23% chance of exploitation in the next 30 days, higher than 14.3% of scored vulnerabilities.
Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 53 · Related 50Timeline
- 06-03-2025PublishedVulnerability first disclosed.
- 05-08-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: rtc: pcf85063: fix potential OOB write in PCF85063 NVMEM read The nvmem interface supports variable buffer sizes, while the regmap interface operates with fixed-size storage. If an nvmem client uses a buffer size less than 4 bytes, regmap_read will write out of bounds as it expects the buffer to point at an unsigned int. Fix this by using an intermediary unsigned int to hold the value.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVDNIST7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.23%
Chance of exploitation in the next 30 days
Percentile
14%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.23% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu132 products
- linux< 5.4.0-216.236 | < 5.15.0-140.150 | < 6.8.0-64.67
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 5.4.0-1146.156 | < 5.15.0-1084.91 | < 6.8.0-1032.34
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ fadfd092ee9138825d8c2a4f95719d2e2e3202b9, < 21cd59fcb9952eb7505da2bdfc1eb9c619df3ff4 | ≥ fadfd092ee9138825d8c2a4f95719d2e2e3202b9, < 6f2a8ca9a0a38589f52a7f0fb9425b9ba987ae7c | ≥ fadfd092ee9138825d8c2a4f95719d2e2e3202b9, < e5536677da803ed54a29a446515c28dce7d3d574 | ≥ fadfd092ee9138825d8c2a4f95719d2e2e3202b9, < c72b7a474d3f445bf0c5bcf8ffed332c78eb28a1 | ≥ fadfd092ee9138825d8c2a4f95719d2e2e3202b9, < 9adefa7b9559d0f21034a5d5ec1b55840c9348b9 | ≥ fadfd092ee9138825d8c2a4f95719d2e2e3202b9, < e5e06455760f2995b16a176033909347929d1128 | ≥ fadfd092ee9138825d8c2a4f95719d2e2e3202b9, < 517aedb365f2c94e2d7e0b908ac7127df76203a1 | ≥ fadfd092ee9138825d8c2a4f95719d2e2e3202b9, < 3ab8c5ed4f84fa20cd16794fe8dc31f633fbc70c | 5.2
- linux_kernel≥ 5.2, < 5.4.291 | ≥ 5.5, < 5.10.235 | ≥ 5.11, < 5.15.179 | ≥ 5.16, < 6.1.129 | ≥ 6.2, < 6.6.76 | ≥ 6.7, < 6.12.13 | ≥ 6.13, < 6.13.2
Debian1 product
- linux< 6.1.129-1 | < 6.12.13-1
3 vendors · 135 products