CVE-2019-13520
No exploitation reported by the sources we read.
- Published2019-08-20
- Fixed in4.2
- WeaknessCWE-121 · CWE-787
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
Multiple buffer overflow issues have been identified in Alpha5 Smart Loader: All versions prior to 4.2. An attacker could use specially crafted project files to overflow the buffer and execute code under the privileges of the application.
Timeline
dates in UTC- 2019-08-2020:15CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 18:48 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2019-13520?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2019-13520?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 4.2 | < 4.2 | 4.2 | NVD |
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Distribution builds and vendor advisories
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Vendor advisories
Fuji Electric Alpha5 Smart Loader
Alpha5 Smart Loader: All versions prior to 4.2
Fix
- Update Fujielectric alpha5 smart loader firmware to 4.2
- Mitigation from the vendor CISA ICSA-19-227-02 · 1 productFuji Electric has released Version 4.2 of the Alpha Loader software (login required).
- Mitigation from the vendor CISA ICSA-19-227-02 · 1 productDo not click web links or open unsolicited attachments in email messages.
- Mitigation from the vendor CISA ICSA-19-227-02 · 1 productRefer to Recognizing and Avoiding Email Scams for more information on avoiding email scams.
- Mitigation from the vendor CISA ICSA-19-227-02 · 1 productRefer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks.
Advisories and patches
- www.us-cert.govMitigation
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
- NVDCVSS 3.17.8read 2026-10-23
- NVDCVSS 2.06.8read 2026-10-23
- CNAweakness (CWE)CWE-121read 2026-10-23
- NVDweakness (CWE)CWE-787read 2026-10-23
- FIRST EPSSEPSS score2.9 %2026-10-22
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Published
- 2019-08-20
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2019-13520?
Is CVE-2019-13520 actively exploited?
What is the CVSS score for CVE-2019-13520?
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Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.