HOMEVULNERABILITIESCVE-2019-11325
CRITICAL

CVE-2019-11325

CWE-116Published: November 21, 2019· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

An issue was discovered in Symfony before 4.2.12 and 4.3.x before 4.3.8. The VarExport component incorrectly escapes strings, allowing some specially crafted ones to escalate to execution of arbitrary PHP code. This is related to symfony/var-exporter.

NVD Source

Technical Analysis

CVE-2019-11325 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

sensiolabs1 product(s)
symfony
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/symfony/var-exporter/compare/d8bf442...57e00f3
PATCHhttps://github.com/symfony/var-exporter/compare/d8bf442...57e00f3
ADVISORYhttps://github.com/symfony/symfony/releases/tag/v4.3.8
ADVISORYhttps://symfony.com/blog/cve-2019-11325-fix-escaping-of-strings-in-varexporter
ADVISORYhttps://symfony.com/blog/symfony-4-3-8-released
ADVISORYhttps://github.com/symfony/symfony/releases/tag/v4.3.8
ADVISORYhttps://symfony.com/blog/cve-2019-11325-fix-escaping-of-strings-in-varexporter
ADVISORYhttps://symfony.com/blog/symfony-4-3-8-released

All References (8)

→
https://github.com/symfony/symfony/releases/tag/v4.3.8Release Notes · Third Party Advisory
→
https://github.com/symfony/var-exporter/compare/d8bf442...57e00f3Patch · Third Party Advisory
→
https://symfony.com/blog/cve-2019-11325-fix-escaping-of-strings-in-varexporterVendor Advisory
→
https://symfony.com/blog/symfony-4-3-8-releasedRelease Notes · Vendor Advisory
→
https://github.com/symfony/symfony/releases/tag/v4.3.8Release Notes · Third Party Advisory
→
https://github.com/symfony/var-exporter/compare/d8bf442...57e00f3Patch · Third Party Advisory
→
https://symfony.com/blog/cve-2019-11325-fix-escaping-of-strings-in-varexporterVendor Advisory
→
https://symfony.com/blog/symfony-4-3-8-releasedRelease Notes · Vendor Advisory

Quick Facts

CVE IDCVE-2019-11325
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-116
CISA KEVNo
Affected1 vendor(s)
PublishedNov 21, 2019

Related CVEs (CWE-116)

CVE-2026-48358
10.0
CVE-2025-55730
10.0
CVE-2025-55729
10.0
CVE-2021-42010
9.8
CVE-2021-28940
9.8
CVE-2022-35153
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2019-11325 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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