CVE-2023-21079 — In rtt_unpack_xtlv_cbfn of dhd_rtt.c, there is a possible out of bounds write due to a heap buffer overflow

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MEDIUM

In rtt_unpack_xtlv_cbfn of dhd_rtt.c, there is a possible out of bounds write due to a heap buffer overflow

Published Mar 24, 2023

6.7

MEDIUM

CVSS 3.1

EPSS 0.10%

Description

In rtt_unpack_xtlv_cbfn of dhd_rtt.c, there is a possible out of bounds write due to a heap buffer overflow. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-254839721References: N/A

Affected products

Vendor n/a Product Android Default
n/a
- Version
  Android kernel
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

n/a

Android

n/a

Version	Status	Constraints
Android kernel	affected	-

Remediation

No remediation recorded yet.

Metrics

0.10% 0.00099

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.00099

Score over time

2023–2026

EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v3
EPSS v4
EPSS v5

Table of values (6 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	0.10% (0.00099)	0.75th	v5 (v2026.06.15)
Jun 15, 2026	0.10% (0.00099)	1.01th	v5 (v2026.06.15)
Mar 17, 2025	0.01% (0.00008)	0.38th	v4 (v2025.03.14)
Dec 12, 2024	0.04% (0.00042)	5.07th	v3 (v2023.03.01)
Mar 30, 2023	0.04% (0.00042)	5.67th	v3 (v2023.03.01)
Mar 25, 2023	0.06% (0.00060)	23.32th	v3 (v2023.03.01)