CWE-193
Off-by-one Error
A product calculates or uses an incorrect maximum or minimum value that is 1 more, or 1 less, than the correct value.
CVE-2026-41502 (GCVE-0-2026-41502)
Vulnerability from cvelistv5 – Published: 2026-04-24 19:40 – Updated: 2026-04-25 01:53
VLAI
Title
BACnet Stack: Off-by-One Out-of-Bounds Read in ReadPropertyMultiple Object ID Decoder
Summary
BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to 1.4.3, an off-by-one out-of-bounds read vulnerability in bacnet-stack's ReadPropertyMultiple service decoder allows unauthenticated remote attackers to read one byte past an allocated buffer boundary by sending a crafted RPM request with a truncated object identifier. The vulnerability is in rpm_decode_object_id(), which checks apdu_len < 5 but then accesses all 6 byte positions (indices 0-5) — consuming 1 byte for the context tag, 4 bytes for the object ID, then reading apdu[5] for the opening tag check. A 5-byte input passes the length check but causes a 1-byte OOB read, leading to crashes on embedded BACnet devices. The vulnerability exists in src/bacnet/rpm.c and affects any deployment that enables the ReadPropertyMultiple confirmed service handler (enabled by default in the reference server). This vulnerability is fixed in 1.4.3.
Severity
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/bacnet-stack/bacnet-stack/secu… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| bacnet-stack | bacnet-stack |
Affected:
>= 1.4.0, < 1.4.3
|
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CVE-2026-42015 (GCVE-0-2026-42015)
Vulnerability from cvelistv5 – Published: 2026-05-26 21:29 – Updated: 2026-05-27 12:47
VLAI
Title
Gnutls: gnutls: memory corruption due to off-by-one error in pkcs#12 bag handling
Summary
A flaw was found in gnutls. An off-by-one error exists in the PKCS#12 bag element bounds check. This vulnerability allows an remote attacker to write past the internal array of a PKCS#12 bag when appending to a bag that already contains 32 elements. This memory corruption could lead to a denial of service (DoS) or potentially other unspecified impacts.
Severity
5.3 (Medium)
CWE
- CWE-193 - Off-by-one Error
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:20611 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-42015 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2467678 | issue-trackingx_refsource_REDHAT |
Impacted products
8 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
0:3.6.16-8.el8_10.6 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:8::appstream cpe:/o:redhat:enterprise_linux:8::baseos |
|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
0:3.6.16-8.el8_10.6 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:8::appstream cpe:/o:redhat:enterprise_linux:8::baseos |
|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10 |
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6 |
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9 |
|
| Red Hat | Red Hat Hardened Images |
cpe:/a:redhat:hummingbird:1 |
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4 |
Date Public
2026-04-29 00:00
Credits
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CVE-2026-43860 (GCVE-0-2026-43860)
Vulnerability from cvelistv5 – Published: 2026-05-04 05:45 – Updated: 2026-05-04 18:20
VLAI
Summary
mutt before 2.3.2 sometimes truncates the hash_passwd by one byte for IMAP auth_cram MD5 digest.
Severity
CWE
- CWE-193 - Off-by-one Error
Assigner
References
1 reference
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CVE-2026-43964 (GCVE-0-2026-43964)
Vulnerability from cvelistv5 – Published: 2026-05-04 18:10 – Updated: 2026-05-04 22:21
VLAI
Summary
Postfix before 3.8.16, 3.9 before 3.9.10, and 3.10 before 3.10.9 sometimes allows a buffer over-read and process crash via an enhanced status code that lacks text after the third number.
Severity
CWE
- CWE-193 - Off-by-one Error
Assigner
References
1 reference
Impacted products
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CVE-2026-44065 (GCVE-0-2026-44065)
Vulnerability from cvelistv5 – Published: 2026-05-21 07:34 – Updated: 2026-05-21 12:49
VLAI
Title
Off-by-two in papd lp_write()
Summary
An off-by-two error in lp_write() in papd in Netatalk 2.0.0 through 4.4.2 allows an adjacent network attacker to modify limited data or cause a minor service disruption via crafted print data.
Severity
CWE
- CWE-193 - Off-by-one Error
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://netatalk.io/security/CVE-2026-44065 | vendor-advisory |
Impacted products
Date Public
2026-05-13 00:00
Credits
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CVE-2026-44603 (GCVE-0-2026-44603)
Vulnerability from cvelistv5 – Published: 2026-05-07 03:21 – Updated: 2026-05-07 14:58
VLAI
Summary
Tor before 0.4.9.7 has an out-of-bounds read by one byte via a malformed BEGIN cell, aka TROVE-2026-007.
Severity
CWE
- CWE-193 - Off-by-one Error
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| torproject | Tor |
Affected:
0 , < 0.4.9.7
(custom)
|
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CVE-2026-45232 (GCVE-0-2026-45232)
Vulnerability from cvelistv5 – Published: 2026-05-20 00:45 – Updated: 2026-05-20 17:31 X_Open Source
VLAI
Title
Rsync < 3.4.3 Off-by-One Stack Write via HTTP Proxy
Summary
Rsync versions before 3.4.3 contain an off-by-one out-of-bounds stack write vulnerability in the establish_proxy_connection() function in socket.c that allows network attackers to corrupt stack memory by sending a malformed HTTP proxy response. Attackers can exploit this by positioning themselves between the client and proxy or controlling the proxy server to send a response line of 1023 or more bytes without a newline terminator, causing a null byte to be written to an out-of-bounds stack address when the RSYNC_PROXY environment variable is set.
Severity
CWE
- CWE-193 - Off-by-one Error
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/RsyncProject/rsync/security/ad… | vendor-advisory |
| https://github.com/RsyncProject/rsync/releases/ta… | release-notes |
| https://www.vulncheck.com/advisories/rsync-off-by… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| RsyncProject | rsync |
Affected:
0 , < 3.4.3
(semver)
|
Date Public
2026-05-19 00:00
Credits
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CVE-2026-4887 (GCVE-0-2026-4887)
Vulnerability from cvelistv5 – Published: 2026-03-26 12:08 – Updated: 2026-05-26 09:00
VLAI
Title
Gimp: gimp:memory disclosure and denial of service via specially crafted pcx image
Summary
A flaw was found in GIMP. This issue is a heap buffer over-read in GIMP PCX file loader due to an off-by-one error. A remote attacker could exploit this by convincing a user to open a specially crafted PCX image. Successful exploitation could lead to out-of-bounds memory disclosure and a possible application crash, resulting in a Denial of Service (DoS).
Severity
6.1 (Medium)
CWE
- CWE-193 - Off-by-one Error
Assigner
References
10 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:16484 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:17533 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:19362 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:20552 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:20553 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:20554 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:20691 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-4887 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2451669 | issue-trackingx_refsource_REDHAT |
| https://gitlab.gnome.org/GNOME/gimp/-/issues/15960 |
Impacted products
13 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
8100020260512115927.4c9c024f , < *
(rpm)
cpe:/a:redhat:enterprise_linux:8::appstream |
|
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support |
Unaffected:
8040020260520140422.70584597 , < *
(rpm)
cpe:/a:redhat:rhel_aus:8.4::appstream cpe:/a:redhat:rhel_eus_long_life:8.4::appstream |
|
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On |
Unaffected:
8040020260520140422.70584597 , < *
(rpm)
cpe:/a:redhat:rhel_aus:8.4::appstream cpe:/a:redhat:rhel_eus_long_life:8.4::appstream |
|
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support |
Unaffected:
8060020260520140100.6af1eaf0 , < *
(rpm)
cpe:/a:redhat:rhel_aus:8.6::appstream cpe:/a:redhat:rhel_e4s:8.6::appstream cpe:/a:redhat:rhel_tus:8.6::appstream |
|
| Red Hat | Red Hat Enterprise Linux 8.6 Telecommunications Update Service |
Unaffected:
8060020260520140100.6af1eaf0 , < *
(rpm)
cpe:/a:redhat:rhel_aus:8.6::appstream cpe:/a:redhat:rhel_e4s:8.6::appstream cpe:/a:redhat:rhel_tus:8.6::appstream |
|
| Red Hat | Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions |
Unaffected:
8060020260520140100.6af1eaf0 , < *
(rpm)
cpe:/a:redhat:rhel_aus:8.6::appstream cpe:/a:redhat:rhel_e4s:8.6::appstream cpe:/a:redhat:rhel_tus:8.6::appstream |
|
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service |
Unaffected:
8080020260520102644.0621e4ee , < *
(rpm)
cpe:/a:redhat:rhel_e4s:8.8::appstream cpe:/a:redhat:rhel_tus:8.8::appstream |
|
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions |
Unaffected:
8080020260520102644.0621e4ee , < *
(rpm)
cpe:/a:redhat:rhel_e4s:8.8::appstream cpe:/a:redhat:rhel_tus:8.8::appstream |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
2:3.0.4-1.el9_7.5 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9::appstream |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
2:3.0.4-4.el9_8.4 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9::appstream |
|
| Red Hat | Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions |
Unaffected:
2:2.99.8-3.el9_0.6 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:9.0::appstream |
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6 |
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7 |
Date Public
2026-03-26 11:35
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CVE-2026-49127 (GCVE-0-2026-49127)
Vulnerability from cvelistv5 – Published: 2026-05-28 18:59 – Updated: 2026-05-29 19:14 X_Open Source
VLAI
Title
Music Player Daemon < 0.24.11 Stack Buffer Overflow via pcm_unpack_24be
Summary
Music Player Daemon (MPD) before version 0.24.11 contains a stack buffer overflow vulnerability in the pcm_unpack_24be function in src/pcm/Pack.cxx that allows unauthenticated attackers to corrupt stack memory by triggering an off-by-one write in the PCM decoder plugin. Attackers can issue two MPD commands referencing a malicious HTTP audio source to cause the unpack loop to write 1366 entries into a 1365-entry buffer, overwriting four bytes past the array boundary with three attacker-controlled bytes from an HTTP response body, resulting in daemon termination or potential code execution.
Severity
CWE
- CWE-193 - Off-by-one Error
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://mstreet97.github.io/security-research/ope… | technical-descriptionexploit |
| https://www.musicpd.org/news/2026/05/mpd-0-24-11-… | release-notespatch |
| https://raw.githubusercontent.com/MusicPlayerDaem… | release-notes |
| https://github.com/MusicPlayerDaemon/MPD/releases… | release-notes |
| https://github.com/MusicPlayerDaemon/MPD/issues/2485 | issue-tracking |
| https://github.com/MusicPlayerDaemon/MPD/commit/5… | patch |
| https://www.vulncheck.com/advisories/music-player… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MusicPlayerDaemon | MPD |
Affected:
0 , < 0.24.11
(semver)
|
Date Public
2026-05-15 00:00
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CVE-2026-5123 (GCVE-0-2026-5123)
Vulnerability from cvelistv5 – Published: 2026-03-30 15:15 – Updated: 2026-04-01 18:10 X_Open Source
VLAI
Title
osrg GoBGP bgp.go DecodeFromBytes off-by-one
Summary
A weakness has been identified in osrg GoBGP up to 4.3.0. This impacts the function DecodeFromBytes of the file pkg/packet/bgp/bgp.go. Executing a manipulation of the argument data[1] can lead to off-by-one. The attack may be launched remotely. Attacks of this nature are highly complex. The exploitability is said to be difficult. This patch is called 67c059413470df64bc20801c46f64058e88f800f. A patch should be applied to remediate this issue.
Severity
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/354155 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/354155/cti | signaturepermissions-required |
| https://vuldb.com/submit/780179 | third-party-advisory |
| https://github.com/osrg/gobgp/pull/3342 | issue-trackingpatch |
| https://github.com/osrg/gobgp/commit/67c059413470… | patch |
| https://github.com/osrg/gobgp/ | product |
Impacted products
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"url": "https://github.com/osrg/gobgp/"
}
],
"tags": [
"x_open-source"
],
"timeline": [
{
"lang": "en",
"time": "2026-03-30T00:00:00.000Z",
"value": "Advisory disclosed"
},
{
"lang": "en",
"time": "2026-03-30T02:00:00.000Z",
"value": "VulDB entry created"
},
{
"lang": "en",
"time": "2026-03-30T09:55:43.000Z",
"value": "VulDB entry last update"
}
],
"title": "osrg GoBGP bgp.go DecodeFromBytes off-by-one"
}
},
"cveMetadata": {
"assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"assignerShortName": "VulDB",
"cveId": "CVE-2026-5123",
"datePublished": "2026-03-30T15:15:14.229Z",
"dateReserved": "2026-03-30T07:50:35.204Z",
"dateUpdated": "2026-04-01T18:10:27.344Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
Mitigation
Phase: Implementation
Description:
- When copying character arrays or using character manipulation methods, the correct size parameter must be used to account for the null terminator that needs to be added at the end of the array. Some examples of functions susceptible to this weakness in C include strcpy(), strncpy(), strcat(), strncat(), printf(), sprintf(), scanf() and sscanf().
No CAPEC attack patterns related to this CWE.