CVE-2023-20951

criticalpriority · track · 39EPSS 0.005 · 42 %ileDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.49% (42nd) EPSS

CVSS 9.8 · critical

Is it mine?

13 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · osv

EPSS · scored 2026-10-27

In gatt_process_prep_write_rsp of gatt_cl.cc, there is a possible out of bounds write due to a missing bounds check. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12L Android-13Android ID: A-258652631

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.19criticalAV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondaryexploitability 3.9 · impact 5.9

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-787USprimaryCWE-20US

affected products (13)

Products and version ranges known to be affected.

Google Android 11all versionscert_bundDEcpe:/o:google:android:11
Google Android 12all versionscert_bundDEcpe:/o:google:android:12
Google Android 12Lall versionscert_bundDEcpe:/o:google:android:12l
Google Android 13all versionscert_bundDEcpe:/o:google:android:13
Samsung Androidall versionscert_bundDEcpe:/o:samsung:android:-
n/a Android≤ Android-11 Android-12 Android-12L Android-13enisa_euvdEU
Google Inc Android11 → 11 2023-02-05fstec_bduRU
Google Inc Android12 → 12L 2023-02-05fstec_bduRU
Google Inc Android13 → 13 2023-02-05fstec_bduRU
google android= 11.0nvdUScpe:2.3:o:google:android:*:*:*:*:*:*:*:*
google android= 12.0nvdUScpe:2.3:o:google:android:*:*:*:*:*:*:*:*
google android= 12.1nvdUScpe:2.3:o:google:android:*:*:*:*:*:*:*:*
google android= 13.0nvdUScpe:2.3:o:google:android:*:*:*:*:*:*:*:*

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-0574Android Patchday März 2023Deutsch2023-03-06csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Google Android ausnutzen, um seine Privilegien zu erhöhen, vertrauliche Informationen offenzulegen, Code auszuführen und einen Denial-of-Service-Zustand zu verursachen.
ASB-A-2586526312023-03-01vendor · osvUS
In gatt_process_prep_write_rsp of gatt_cl.cc, there is a possible out of bounds write due to a missing bounds check. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu osv cert_bund nvd NVD CVE.org MITRE

published 2023-03-24modified 2026-06-17

related (16,124)

Related entries.

ID	severity	EPSS	exploitable	published
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In the Linux kernel, the following vulnerability has been resolved: ipv6: account for fraggap on the paged allocation path In __ip6_append_data(), when the paged-allocation branc…
CVE-2026-53266US	—OT critical	0.93% (61st)	KEV	2026-06-25
In the Linux kernel, the following vulnerability has been resolved: netfilter: bridge: make ebt_snat ARP rewrite writable The ebtables SNAT target keeps the Ethernet source addre…
CVE-2026-11645US	—OT critical	2.44% (84th)	KEV	2026-06-09
Out of bounds read and write in V8 in Google Chrome prior to 149.0.7827.103 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium…

+16119 more

references (6)

External citations — patches, advisories, analysis.

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