CVE-2020-0499

In FLAC__bitreader_read_rice_signed_block of bitreader.c, there is a possible out of bounds read due to a heap buffer overflow. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-156076070

Published: 2020-12-15 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-0499 is rated Moderate Risk (44.4/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 3.96%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2020-0499

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 7.95% 3.96% -3.99%
2 2026-05-28 5.47% 7.95% +2.48%
3 2025-12-29 — 5.47% —

Full EPSS history (23 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-0499

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 2.8 1.4 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2020-0499

OS Trackers for CVE-2020-0499

vendor priority summary link
alpine medium CVE-2020-0499: 1 source package rows (flac); 8 state rows across 8 repos (3.12-main, 3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 8, open 0. https://security.alpinelinux.org/vuln/CVE-2020-0499
debian not yet assigned CVE-2020-0499 not yet assigned priority: Debian including 1 source packages (flac), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2020-0499
redhat low — https://access.redhat.com/security/cve/CVE-2020-0499
suse medium CVE-2020-0499 severity moderate: SUSE including 309 source package names (0.3.32-3.4:libFLAC8-1.3.2-3.6.1, 17:libFLAC8-1.3.2-3.6.1, …), 466 product×package rows across 77 product lines (Container containers/milvus, Container containers/open-webui, … (77 product lines)): Fixed 231, Known Affected 231, Known Not Affected 4. https://www.suse.com/security/cve/CVE-2020-0499/
ubuntu low CVE-2020-0499 low priority: Ubuntu including 1 source packages (flac), 10 status rows across 10 suites (bionic, focal, groovy, hirsute, impish, jammy, kinetic, trusty, upstream, xenial): released 5, ignored 3, not-affected 2. https://ubuntu.com/security/CVE-2020-0499

Affected software / configurations for CVE-2020-0499

Vendor Product Version Raw CPE
google android 11.0 cpe:2.3:o:google:android:11.0:*:*:*:*:*:*:*
debian debian_linux 9.0 cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
fedoraproject fedora 32 cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
fedoraproject fedora 33 cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*

References for CVE-2020-0499

cvelogic Threat Intelligence