CVE-2020-12659: linux linux_kernel Out-of-bounds Write
Vulnerability summary
CVE-2020-12659 is a high (CVSS 7.2) Out-of-bounds Write vulnerability in linux linux_kernel. EPSS estimates a 0.71% chance of exploitation in the next 30 days, higher than 53.4% of scored vulnerabilities. 1 public exploit is recorded.
Not severe (CVSS 6.7, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 14 · Related 10Timeline
- 05-05-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
An issue was discovered in the Linux kernel before 5.6.7. xdp_umem_reg in net/xdp/xdp_umem.c has an out-of-bounds write (by a user with the CAP_NET_ADMIN capability) because of a lack of headroom validation.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · DebianEcosystem advisory · calculated6.7MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- NVDNIST6.7MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.71%
Chance of exploitation in the next 30 days
Percentile
53%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.71% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundExploit Reference (bugzilla.kernel.org)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, administrative account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu24 products
- linux< 5.4.0-37.41
- linux-aws< 5.4.0-1015.15
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.3< 5.3.0-1023.25~18.04.1
- linux-azureAll versions (No fix recorded) | < 5.4.0-1016.16
Netapp7 products
- active_iq_unified_managerna
- aff_baseboard_management_controllera700s
- cloud_backupna
- hci_baseboard_management_controllerh300s | h410c | h410s | h500s | h610c | h610s | h615c | h700s
- solidfire_\&_hci_management_nodena
Debian1 product
- linux< 5.6.7-1
Linux1 product
- linux_kernel≥ 4.18, < 4.19.118 | ≥ 4.20, < 5.4.35 | ≥ 5.5, < 5.6.7
4 vendors · 33 products
References
17 links- bugzilla.kernel.org/show_bug.cgi?id=207225X Refsource MISCREPORTExploitIssue TrackingVendor Advisory
- github.com/torvalds/linux/commit/99e3a236dd43d06c65af0a2ef9cb44306aef6e02X Refsource MISCREPORTPatchThird Party Advisory
- cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.7X Refsource MISCREPORTRelease NotesVendor Advisory
- lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party AdvisoryVDB Entry
