CVE-2017-1000190: SimpleXML (latest version 2.7.1) is vulnerable to an XXE vulnerability resulting SSRF, information disclosure,

Q: How do I fix CVE-2017-1000190?

solr: downgrade or apply the listed mitigation; simplexml: upgrade to newer than 2.7.1. Exact commands for each OS are on this page.

Q: Is CVE-2017-1000190 being exploited?

CVE-2017-1000190 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2017-1000190 affect?

CVE-2017-1000190 affects solr, simplexml. Severity is critical (CVSS 9.1). SimpleXML (latest version 2.7.1) is vulnerable to an XXE vulnerability resulting SSRF, information disclosure, DoS and so on.

Q: How urgent is CVE-2017-1000190?

Priority 70/100. Critical severity; EPSS top 8%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action; On your watchlist

This week

CRITICAL 9.1REMOTEWATCHLISTDOWNGRADEUPGRADE

CVE-2017-1000190 is a critical-severity flaw (CVSS 9.1) affecting solr, simplexml. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SimpleXML (latest version 2.7.1) is vulnerable to an XXE vulnerability resulting SSRF, information disclosure, DoS and so on.

Why this priority

Critical severity
EPSS top 8%: very likely to be exploited
Public exploit reference
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	9.1 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	4.7% (top 8%)
CISA exploited list	No
Weakness	CWE-611
Published	2017-11-17
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: apache · simplexml project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2017-11-17 21:29 UTCPublished CVE record published
2026-06-17 00:58 UTCUpdated Record last modified

apache solr DOWNGRADE

Affected: 8.4.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 8.4.1

1. Check installed version

apt-cache policy solr || rpm -q solr || solr --version

2. No fixed release: DOWNGRADE to a release before 8.4.1 (Debian / Ubuntu)

apt-cache madison solr sudo apt install solr=<VERSION_BEFORE_8.4.1> sudo apt-mark hold solr

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list solr sudo dnf downgrade solr-<VERSION_BEFORE_8.4.1> sudo dnf versionlock add solr

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

simplexml project simplexml UPGRADE

Affected: <= 2.7.1

Fixed in: newer than 2.7.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy simplexml || rpm -q simplexml || simplexml --version

2. UPGRADE to newer than 2.7.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade simplexml

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade simplexml

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Exact fixes by distribution

A distro patch exists: prefer upgrading over downgrading.

Maven · org.simpleframework:simple-xml · FIXED · 2.7.1 · vulnerable: < 2.7.1 · source

Set org.simpleframework:simple-xml to 2.7.1 or later in pom.xml or build.gradle, then rebuild and redeploy.

Fedora 46 · root · FIXED · 6.40.04-7.fc46 · FEDORA-2026-7329868400 · source

sudo dnf upgrade --advisory=FEDORA-2026-7329868400

Ubuntu 20.04 · simple-xml · NOT AFFECTED

Ubuntu 22.04 · simple-xml · NOT AFFECTED

Ubuntu 24.04 · simple-xml · NOT AFFECTED

Ubuntu 24.10 · simple-xml · NOT AFFECTED

Ubuntu 25.04 · simple-xml · NOT AFFECTED

Debian 12 · simple-xml · FIXED · 2.7.1-3

sudo apt update && sudo apt install --only-upgrade simple-xml dpkg --compare-versions "$(dpkg-query -W -f='${Version}' simple-xml)" ge "2.7.1-3" && echo PATCHED || echo STILL-VULNERABLE

Debian 13 · simple-xml · FIXED · 2.7.1-3

sudo apt update && sudo apt install --only-upgrade simple-xml dpkg --compare-versions "$(dpkg-query -W -f='${Version}' simple-xml)" ge "2.7.1-3" && echo PATCHED || echo STILL-VULNERABLE

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Write-up: github.com/ngallagher/simplexml/issues/18

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2017-1000190?

solr: downgrade or apply the listed mitigation; simplexml: upgrade to newer than 2.7.1. Exact commands for each OS are on this page.

Is CVE-2017-1000190 being exploited?

CVE-2017-1000190 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2017-1000190 affect?

CVE-2017-1000190 affects solr, simplexml. Severity is critical (CVSS 9.1). SimpleXML (latest version 2.7.1) is vulnerable to an XXE vulnerability resulting SSRF, information disclosure, DoS and so on.

How urgent is CVE-2017-1000190?

Priority 70/100. Critical severity; EPSS top 8%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action; On your watchlist

Software pages

Apache Solr vulnerabilities

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References

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