CVE-2021-3121

highpriority · track · 35EPSS 0.034 · 89 %ileDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

3.43% (89th) EPSS

CVSS 7.5 · high

Is it mine?

20 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · osv

EPSS · scored 2026-10-23

An issue was discovered in GoGo Protobuf before 1.3.2. plugin/unmarshal/unmarshal.go lacks certain index validation, aka the "skippy peanut butter" issue.

cvss

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

8.6

010

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

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4

v3.18.6highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 4.7

v3.18.6highAV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Hsecondary · FSTEC (BDU) RU

v3.18.6highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Hsecondary · OSV

v3.17.9highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-129USprimaryCWE-129USCWE-129USCWE-20US

affected products (20)

Products and version ranges known to be affected.

IBM DB2all versionscert_bundDEcpe:/a:ibm:db2:-
IBM DB2 On Openshift <11.5.7.0-cn5all versionscert_bundDE
IBM DB2 on Cloud Pak for Data <4.5.0all versionscert_bundDE
IBM MQall versionscert_bundDEcpe:/a:ibm:mq:-
IBM DB2≤ On Openshift <11.5.7.0-cn5cert_bundDE
IBM DB2≤ on Cloud Pak for Data <4.5.0cert_bundDE
n/a n/a≤ n/aenisa_euvdEU
IBM Corp. IBM Robotic Process Automation≤ 21.0.2.5fstec_bduRU
АО «НППКТ» ОСОН ОСнова Оnyx≤ 2.7fstec_bduRU
АО «Экзософт» VMmanager 6≤ 6.2.2026.05.2fstec_bduRU
Сообщество свободного программного обеспечения GoGo Protobuf≤ 1.3.2fstec_bduRU
golang protobuf< 1.3.2nvdUScpe:2.3:a:golang:protobuf:*:*:*:*:*:*:*:*
hashicorp consul< 1.8.15nvdUScpe:2.3:a:hashicorp:consul:*:*:*:*:*:*:*:*
hashicorp consul1.10.0 → 1.10.2nvdUScpe:2.3:a:hashicorp:consul:*:*:*:*:*:*:*:*
hashicorp consul1.9.0 → 1.9.9nvdUScpe:2.3:a:hashicorp:consul:*:*:*:*:*:*:*:*
Bitnami consul< 1.8.15osvUSpkg:bitnami/consul
Bitnami consul1.10.0 → 1.10.2osvUSpkg:bitnami/consul
Bitnami consul1.9.0 → 1.9.9osvUSpkg:bitnami/consul
Bitnami protobuf< 1.3.2osvUSpkg:bitnami/protobuf
Go github.com/gogo/protobuf< 1.3.2osvUSpkg:golang/github.com/gogo/protobuf

advisories (6)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2022-0510IBM DB2: Mehrere SchwachstellenDeutsch2022-06-29csaf · cert_bundDE
Ein entfernter, anonymer, authentisierter oder lokaler Angreifer kann mehrere Schwachstellen in IBM DB2 ausnutzen, um Dateien zu manipulieren, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen, einen Denial-of-Service-Zustand auszulösen, willkürlichen Code mit erhöhten Rechten auszuführen, Informationen falsch darzustellen und beliebigen Code auszuführen.
WID-SEC-W-2022-0970Red Hat OpenShift: Mehrere SchwachstellenDeutsch2022-04-07csaf · cert_bundDE
Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Red Hat OpenShift ausnutzen, um einen Denial-of-Service-Zustand zu verursachen und Sicherheitsmaßnahmen zu umgehen.
GHSA-c3h9-896r-86jmImproper Input Validation in GoGo Protobuf2022-03-28ghsa · osvUS
An issue was discovered in GoGo Protobuf before 1.3.2. plugin/unmarshal/unmarshal.go lacks certain index validation, aka the "skippy peanut butter" issue.
BIT-consul-2021-31212024-03-06vendor · osvUS
An issue was discovered in GoGo Protobuf before 1.3.2. plugin/unmarshal/unmarshal.go lacks certain index validation, aka the "skippy peanut butter" issue.
BIT-protobuf-2021-31212024-03-06vendor · osvUS
An issue was discovered in GoGo Protobuf before 1.3.2. plugin/unmarshal/unmarshal.go lacks certain index validation, aka the "skippy peanut butter" issue.
GO-2021-0053Panic due to improper input validation in github.com/gogo/protobuf2021-04-14vendor · osvUS
Due to improper bounds checking, maliciously crafted input to generated Unmarshal methods can cause an out-of-bounds panic. If parsing messages from untrusted parties, this may be used as a denial of service vector.

also known as (8)

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 2021-01-11modified 2026-10-08

related (944)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2022-48503US	high8.8OT critical	3.21% (88th)	KEV	2023-08-14
The issue was addressed with improved bounds checks. This issue is fixed in tvOS 15.6, watchOS 8.7, iOS 15.6 and iPadOS 15.6, macOS Monterey 12.5, Safari 15.6. Processing web conte…
CVE-2017-11292US	high8.8OT critical	11.9% (96th)	KEV	2017-10-22
Adobe Flash Player version 27.0.0.159 and earlier has a flawed bytecode verification procedure, which allows for an untrusted value to be used in the calculation of an array index.…
CVE-2013-1322US	high10.0	25.3% (98th)	—	2013-05-15
Microsoft Publisher 2003 SP3 does not properly check table range data, which allows remote attackers to execute arbitrary code via a crafted Publisher file, aka "Publisher Invalid…
CVE-2022-35737US	high7.5	23.6% (98th)	Exploit	2022-08-03
SQLite 1.0.12 through 3.39.x before 3.39.2 sometimes allows an array-bounds overflow if billions of bytes are used in a string argument to a C API.
CVE-2022-46152US	high8.8	0.49% (41st)	Exploit	2022-11-29
OP-TEE Trusted OS is the secure side implementation of OP-TEE project, a Trusted Execution Environment. Versions prior to 3.19.0, contain an Improper Validation of Array Index vuln…

+939 more

references (80)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan