CVE-2020-35494

Exp

There's a flaw in binutils /opcodes/tic4x-dis.c. An attacker who is able to submit a crafted input file to be processed by binutils could cause usage of uninitialized memory. The highest threat is to application availability with a lower threat to data confidentiality. This flaw affects binutils versions prior to 2.34.

Published: 2021-01-04 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-35494 is rated High Exploit Risk (61.3/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.07%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

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

Public exploit references (Exploit-DB) for CVE-2020-35494

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2020-35494

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 0.37% 1.07% +0.70%
2 2026-05-31 0.21% 0.37% +0.16%
3 2026-05-24 — 0.21% —

Full EPSS history (14 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-35494

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.1 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
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:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 4.2 [email protected]
5.8 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/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:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 4.9 [email protected]

Weakness enumeration for CVE-2020-35494

OS Trackers for CVE-2020-35494

vendor priority summary link
alpine medium CVE-2020-35494: 1 source package rows (binutils); 12 state rows across 7 repos (3.10-main, 3.11-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 0, open 12. https://security.alpinelinux.org/vuln/CVE-2020-35494
debian unimportant CVE-2020-35494 unimportant priority: Debian including 1 source packages (binutils), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2020-35494
gentoo normal CVE-2020-35494: 1 GLSA(s) (202107-24), 1 atom(s) (sys-devel/binutils); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2020-35494
redhat low — https://access.redhat.com/security/cve/CVE-2020-35494
suse medium CVE-2020-35494 severity moderate: SUSE including 6 source package names (binutils, binutils-devel, binutils-devel-32bit, binutils-gold, libctf-nobfd0, libctf0), 148 product×package rows across 55 product lines (HPE Helion OpenStack 8, SUSE CaaS Platform 4.5, … (55 product lines)): Known Not Affected 148. https://www.suse.com/security/cve/CVE-2020-35494/
ubuntu low CVE-2020-35494 low priority: Ubuntu including 1 source packages (binutils), 6 status rows across 6 suites (bionic, focal, groovy, trusty, upstream, xenial): not-affected 5, released 1. https://ubuntu.com/security/CVE-2020-35494

Affected software / configurations for CVE-2020-35494

Vendor Product Version Raw CPE
gnu binutils < 2.34 cpe:2.3:a:gnu:binutils:*:*:*:*:*:*:*:*
fedoraproject fedora 32 cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
netapp cloud_backup — cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*
netapp ontap_select_deploy_administration_utility — cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:*
netapp solidfire\,_enterprise_sds_\&_hci_storage_node — cpe:2.3:a:netapp:solidfire\,_enterprise_sds_\&_hci_storage_node:-:*:*:*:*:*:*:*
netapp solidfire_\&_hci_management_node — cpe:2.3:a:netapp:solidfire_\&_hci_management_node:-:*:*:*:*:*:*:*
broadcom brocade_fabric_operating_system_firmware — cpe:2.3:o:broadcom:brocade_fabric_operating_system_firmware:-:*:*:*:*:*:*:*
netapp hci_compute_node_firmware — cpe:2.3:o:netapp:hci_compute_node_firmware:-:*:*:*:*:*:*:*

References for CVE-2020-35494

cvelogic Threat Intelligence