CVE Intelligence
Medium Memory corruption exploit reference

CVE-2020-13434 — SQLite through 3.32.0 has an integer overflow in sqlite3_str_vappendf in printf.c.

SQLite through 3.32.0 has an integer overflow in sqlite3_str_vappendf in printf.c.

Published May 24, 2020 · Updated Oct 14, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP, GitHub Security Advisories · CNA: mitre

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.
How the score was calculated
  • EPSS 1% (30-day exploitation probability)+9
  • Technical severity (medium)+3

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation
Not confirmed
Not in CISA KEV — an absence of record, not proof it is unexploited.
EPSS FIRST
1.01%
ahead of 62% of scored CVEs · Oct 14, 2026
Affects
Apple
Icloud and 14 more
CVSS base
5.5
Medium · 2 source(s)

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

  • Documented patch — www.oracle.com (NIST National Vulnerability Database)
  • Documented patch — www.oracle.com (NIST National Vulnerability Database)
  • Documented patch — www.oracle.com (NIST National Vulnerability Database)
  • Documented patch — www.sqlite.org (NIST National Vulnerability Database)
  • Documented patch — www.sqlite.org (NIST National Vulnerability Database)

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

  1. Identify exposed assets running the affected vendor/product/version combinations (Apple Icloud, Apple Ipados, Apple Iphone Os…).
  2. Apply the fixed version or the patch documented under Remediation.
  3. Search available logs for exploit probes matching the vulnerability class (memory corruption), errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

VendorProductVersionsStatusSource
Apple Icloud < 11.5 Vulnerable NIST National Vulnerability Database
Apple Ipados < 14.0 Vulnerable NIST National Vulnerability Database
Apple Iphone Os < 14.0 Vulnerable NIST National Vulnerability Database
Apple Itunes < 12.10.9 Vulnerable NIST National Vulnerability Database
Apple Macos ≥ 11.0 and < 11.0.1 Vulnerable NIST National Vulnerability Database
Apple Tvos < 14.0 Vulnerable NIST National Vulnerability Database
Apple Watchos < 7.0 Vulnerable NIST National Vulnerability Database
Canonical Ubuntu Linux version 16.04version 18.04version 19.10version 20.04 Vulnerable NIST National Vulnerability Database
Debian Debian Linux version 8.0version 9.0 Vulnerable NIST National Vulnerability Database
Fedoraproject Fedora version 32 Vulnerable NIST National Vulnerability Database
Freebsd Freebsd version 12.0-p5version 12.0version 12.0-p6version 12.0-p7version 12.0-p8version 12.0-p9version 12.1version 12.1-p1
and 16 more version 12.1-p2version 12.1-p3version 12.1-p4version 12.1-p5version 12.1-p6version 12.1-p7version 12.0-p4version 12.0-p3version 12.0-p2version 12.0-p12version 12.0-p11version 12.0-p10version 12.0-p1version 11.4-p1version 11.4≥ 11.0 and < 11.4
Vulnerable NIST National Vulnerability Database
Oracle Communications Cloud Native Core Policy version 1.14.0 Vulnerable NIST National Vulnerability Database
Oracle Communications Network Charging And Control version 6.0.1≥ 12.0.0 and ≤ 12.0.3 Vulnerable NIST National Vulnerability Database
Oracle Outside In Technology version 8.5.5 Vulnerable NIST National Vulnerability Database
Sqlite Sqlite ≤ 3.32.0 Vulnerable NIST National Vulnerability Database

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

ScoreVersionSeverityExpl.ImpactScored by
5.5 CVSS 3.1 Medium 1.8 3.6 nvd@nist.gov via NIST National Vulnerability Database
5.5 CVSS 3.1 Medium — — GitHub, Inc. via GitHub Security Advisories
2.1 CVSS 2.0 Low 3.9 2.9 nvd@nist.gov via NIST National Vulnerability Database
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H (score shown at the top: nvd@nist.gov)

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-190 · Integer Overflow or Wraparound

Other CVEs with this weakness →

EPSS over time FIRST

Oct 13, 2026 → Oct 14, 2026 · 2 reading(s) · max 1.01%

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

  • Local/physical vector: focus on endpoint telemetry (EDR) from affected hosts.
  • Correlate service crashes/restarts with inbound traffic; repeated crashes may indicate attempts.
endpoint telemetry (EDR)crash dumps

Timeline

What happened to this CVE, newest first.

  • 2026
  • Record published
    Oct 14, 2026
  • Fix documented
    Oct 14, 2026 · NIST National Vulnerability Database
  • Affected products added · sqlite/sqlite, debian/debian linux, fedoraproject/fedora, canonical/ubuntu linux, freebsd/freebsd, oracle/communications
    Oct 14, 2026 · NIST National Vulnerability Database
  • CVSS changed · 5.5
    Oct 14, 2026 · NIST National Vulnerability Database
  • Source status changed · → Modified
    Oct 14, 2026 · NIST National Vulnerability Database
  • Record created in this database
    Oct 14, 2026 · Alertas do Telegram
  • 2020
  • CVE published
    May 24, 2020 · mitre

Source activity

Repeated readings are counted rather than listed.

  • 2× References added · Oct 14, 2026 – Oct 14, 2026
  • 1× Official description updated · Oct 14, 2026 – Oct 14, 2026

References

29 on the record

Elsewhere on this site

Apple
every CVE for this vendor
Memory corruption
same class
CWE-190
other pages naming this weakness

Related CVEs (same products)

  • CVE-2026-101311 Multiple vulnerabilities in bhyve device models 18h
  • CVE-2026-101309 Multiple vulnerabilities in bhyve device models 18h
  • CVE-2026-101310 Multiple vulnerabilities in bhyve device models 18h
  • CVE-2026-58100 Memory safety bugs in kqueue copy-on-fork implementation 19h
  • CVE-2026-58098 Heap out-of-bounds access in semop(2) 19h
  • CVE-2026-58099 Memory safety bugs in kqueue copy-on-fork implementation 19h

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

  • No CISA SSVC assessment.
  • No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
  • No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
  • No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2020-13434 is "SQLite through 3.32.0 has an integer overflow in sqlite3_str_vappendf in printf.c.", rated Medium. It affects Icloud (Apple); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 5.5 describes technical severity. EPSS 1.01% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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