Elevated Temp Directory Execution in 1E Client
In the affected version of the 1E Client, an ordinary user could subvert downloaded instruction resource files, e.g., to substitute a harmful script. by replacing a resource script file created by an instruction at run time with a malicious script. The 1E Client's temporary directory is now locked down in the released patch. Resolution: This has been fixed in patch Q23094 This issue has also been fixed in the Mac Client in updated versions of Non-Windows release v8.1.2.62 - please re-download from the 1E Support site. Customers with Mac Client versions higher than v8.1 will need to upgrade to v23.11 to remediate this vulnerability.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for help- Published
- Oct 5, 2023
- Updated
- Jun 17, 2026
- EPSS
- 0.7% · 51th percentile
- CWE
- CWE-552
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Report tools
Action score
35
Monitor
Low priority for now.
- CVSS
- 35 / 40 · 8.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.7%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- 8.8
- CNA · 1E
- 8.8
- agree
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| 1e | client | cpe:2.3:a:1e:client |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- 1e client23.7.1.151
- 1e client8.1.2.62
- 1e client8.4.1.159
- 1e client9.0.1.88
Versions reported by the vendor
Affected version ranges reported by the assigning authority (1E). Independent of NVD's CPE analysis and usually ahead of it.
1E 1E Client
- up to and including 8.1.2.62affected · Q23094
- up to and including 8.4.1.159affected · Q23094
- up to and including 9.0.1.88affected · Q23094
- up to and including 23.7.1.151affected · Q23094
Same product
1e: all recordsOther highest-scoring records for the same primary product.
- CVE-2020-27645The Inventory module of the 1E Client 5.0.0.745 doesn't handle an unquoted path when executing %PROGRAMFILES%\1E\Client\Tachyon.Performance.35Monitor
- CVE-2020-27644The Inventory module of the 1E Client 5.0.0.745 doesn't handle an unquoted path when executing %PROGRAMFILES%\1E\Client\Tachyon.Performance.35Monitor
- CVE-2020-16268The MSI installer in 1E Client 4.1.0.267 and 5.0.0.745 allows remote authenticated users and local users to gain elevated privileges via the35Monitor
- CVE-2023-451591E Client installer can perform arbitrary file deletion on protected files33Monitor
- CVE-2020-27643The %PROGRAMDATA%\1E\Client directory in 1E Client 5.0.0.745 and 4.1.0.267 allows remote authenticated users and local users to create and m26Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- A low-privileged account is enough.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-552 · Files or Directories Accessible to External PartiesCVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
ATT&CK techniques
- OS Credential DumpingT1003
- Data from Network Shared DriveT1039
- Automated CollectionT1119
- Data from Information RepositoriesT1213
- Data from Cloud Storage ObjectT1530
- Unsecured Credentials: Credentials in FilesT1552.001
- Unsecured Credentials: Bash HistoryT1552.003
- Unsecured Credentials: Private KeysT1552.004
- Unsecured Credentials: Group Policy PreferencesT1552.006
- Credentials from Password StoresT1555
- Data from Configuration RepositoryT1602
Change log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
- www.teamviewer.com/en/resources/trust-center/security-bulletins/1e-2023-2002/
- 1e.my.site.com/s/
- www.1e.com/trust-security-compliance/cve-info/
- www.1e.com/vulnerability-disclosure-policy/
Vendor advisories and official records. Exploit/PoC links are deliberately left out.